diff --git a/poetry.lock b/poetry.lock
index 973733a6d61..b066ade9a7c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -16,30 +16,18 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "attrs"
-version = "20.2.0"
+version = "20.3.0"
 description = "Classes Without Boilerplate"
 category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.extras]
-dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "sphinx-rtd-theme", "pre-commit"]
-docs = ["sphinx", "sphinx-rtd-theme", "zope.interface"]
+dev = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "furo", "sphinx", "pre-commit"]
+docs = ["furo", "sphinx", "zope.interface"]
 tests = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]
 
-[[package]]
-name = "backports.functools-lru-cache"
-version = "1.6.1"
-description = "Backport of functools.lru_cache"
-category = "dev"
-optional = false
-python-versions = ">=2.6"
-
-[package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-black-multipy", "pytest-cov"]
-
 [[package]]
 name = "cachecontrol"
 version = "0.12.6"
@@ -72,7 +60,7 @@ msgpack = ["msgpack-python (>=0.5,<0.6)"]
 
 [[package]]
 name = "certifi"
-version = "2020.6.20"
+version = "2020.11.8"
 description = "Python package for providing Mozilla's CA Bundle."
 category = "main"
 optional = false
@@ -126,40 +114,17 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.dependencies]
 crashtest = {version = ">=0.3.0,<0.4.0", markers = "python_version >= \"3.6\" and python_version < \"4.0\""}
-enum34 = {version = ">=1.1,<2.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
 pastel = ">=0.2.0,<0.3.0"
 pylev = ">=1.3,<2.0"
-typing = {version = ">=3.6,<4.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\" or python_version >= \"3.4\" and python_version < \"3.5\""}
-typing-extensions = {version = ">=3.6,<4.0", markers = "python_version >= \"3.5\" and python_full_version < \"3.5.4\""}
 
 [[package]]
 name = "colorama"
-version = "0.4.3"
+version = "0.4.4"
 description = "Cross-platform colored terminal text."
 category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
-[[package]]
-name = "configparser"
-version = "4.0.2"
-description = "Updated configparser from Python 3.7 for Python 2.6+."
-category = "main"
-optional = false
-python-versions = ">=2.6"
-
-[package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2)", "pytest-flake8", "pytest-black-multipy"]
-
-[[package]]
-name = "contextlib2"
-version = "0.6.0.post1"
-description = "Backports and enhancements for the contextlib module"
-category = "main"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
 [[package]]
 name = "coverage"
 version = "5.3"
@@ -181,7 +146,7 @@ python-versions = ">=3.6,<4.0"
 
 [[package]]
 name = "cryptography"
-version = "3.1.1"
+version = "3.2.1"
 description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 category = "main"
 optional = false
@@ -189,16 +154,14 @@ python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
 
 [package.dependencies]
 cffi = ">=1.8,<1.11.3 || >1.11.3"
-enum34 = {version = "*", markers = "python_version < \"3\""}
-ipaddress = {version = "*", markers = "python_version < \"3\""}
 six = ">=1.4.1"
 
 [package.extras]
-docs = ["sphinx (>=1.6.5,<1.8.0 || >1.8.0,<3.1.0 || >3.1.0,<3.1.1 || >3.1.1)", "sphinx-rtd-theme"]
+docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
 docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
 pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
 ssh = ["bcrypt (>=3.1.5)"]
-test = ["pytest (>=3.6.0,<3.9.0 || >3.9.0,<3.9.1 || >3.9.1,<3.9.2 || >3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,<3.79.2 || >3.79.2)"]
+test = ["pytest (>=3.6.0,!=3.9.0,!=3.9.1,!=3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
 
 [[package]]
 name = "distlib"
@@ -208,25 +171,6 @@ category = "main"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "entrypoints"
-version = "0.3"
-description = "Discover and load entry points from installed packages."
-category = "main"
-optional = false
-python-versions = ">=2.7"
-
-[package.dependencies]
-configparser = {version = ">=3.5", markers = "python_version == \"2.7\""}
-
-[[package]]
-name = "enum34"
-version = "1.1.10"
-description = "Python 3.4 Enum backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4"
-category = "main"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "filelock"
 version = "3.0.12"
@@ -235,38 +179,6 @@ category = "main"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "funcsigs"
-version = "1.0.2"
-description = "Python function signatures from PEP362 for Python 2.6, 2.7 and 3.2+"
-category = "dev"
-optional = false
-python-versions = "*"
-
-[[package]]
-name = "functools32"
-version = "3.2.3-2"
-description = "Backport of the functools module from Python 3.2.3 for use on 2.7 and PyPy."
-category = "main"
-optional = false
-python-versions = "*"
-
-[[package]]
-name = "futures"
-version = "3.3.0"
-description = "Backport of the concurrent.futures package from Python 3"
-category = "main"
-optional = false
-python-versions = ">=2.6, <3"
-
-[[package]]
-name = "glob2"
-version = "0.6"
-description = "Version of the glob module that can capture patterns and supports recursive wildcards"
-category = "main"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "html5lib"
 version = "1.1"
@@ -287,18 +199,15 @@ lxml = ["lxml"]
 
 [[package]]
 name = "httpretty"
-version = "0.9.7"
+version = "1.0.2"
 description = "HTTP client mock for Python"
 category = "dev"
 optional = false
-python-versions = "*"
-
-[package.dependencies]
-six = "*"
+python-versions = ">=3"
 
 [[package]]
 name = "identify"
-version = "1.5.5"
+version = "1.5.10"
 description = "File identification library for Python"
 category = "dev"
 optional = false
@@ -324,9 +233,6 @@ optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
 [package.dependencies]
-configparser = {version = ">=3.5", markers = "python_version < \"3\""}
-contextlib2 = {version = "*", markers = "python_version < \"3\""}
-pathlib2 = {version = "*", markers = "python_version < \"3\""}
 zipp = ">=0.5"
 
 [package.extras]
@@ -335,92 +241,46 @@ testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
 
 [[package]]
 name = "importlib-resources"
-version = "3.0.0"
+version = "3.3.0"
 description = "Read resources from Python packages"
 category = "main"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,>=2.7"
 
 [package.dependencies]
-contextlib2 = {version = "*", markers = "python_version < \"3\""}
-pathlib2 = {version = "*", markers = "python_version < \"3\""}
-singledispatch = {version = "*", markers = "python_version < \"3.4\""}
-typing = {version = "*", markers = "python_version < \"3.5\""}
 zipp = {version = ">=0.4", markers = "python_version < \"3.8\""}
 
 [package.extras]
 docs = ["sphinx", "rst.linker", "jaraco.packaging"]
 
-[[package]]
-name = "ipaddress"
-version = "1.0.23"
-description = "IPv4/IPv6 manipulation library"
-category = "main"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "jeepney"
-version = "0.4.3"
+version = "0.6.0"
 description = "Low-level, pure Python DBus protocol wrapper."
 category = "main"
 optional = false
-python-versions = ">=3.5"
-
-[package.extras]
-dev = ["testpath"]
-
-[[package]]
-name = "keyring"
-version = "18.0.1"
-description = "Store and access your passwords safely."
-category = "main"
-optional = false
-python-versions = ">=2.7"
-
-[package.dependencies]
-entrypoints = "*"
-pywin32-ctypes = {version = "<0.1.0 || >0.1.0,<0.1.1 || >0.1.1", markers = "sys_platform == \"win32\""}
-secretstorage = {version = "<3", markers = "(sys_platform == \"linux2\" or sys_platform == \"linux\") and python_version < \"3.5\""}
-
-[package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs", "pytest-flake8"]
-
-[[package]]
-name = "keyring"
-version = "20.0.1"
-description = "Store and access your passwords safely."
-category = "main"
-optional = false
-python-versions = ">=3.5"
-
-[package.dependencies]
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
-pywin32-ctypes = {version = "<0.1.0 || >0.1.0,<0.1.1 || >0.1.1", markers = "sys_platform == \"win32\""}
-secretstorage = {version = "*", markers = "sys_platform == \"linux\""}
+python-versions = ">=3.6"
 
 [package.extras]
-docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-black-multipy", "pytest-cov"]
+test = ["pytest", "pytest-trio", "pytest-asyncio", "testpath", "trio"]
 
 [[package]]
 name = "keyring"
-version = "21.4.0"
+version = "21.5.0"
 description = "Store and access your passwords safely."
 category = "main"
 optional = false
 python-versions = ">=3.6"
 
 [package.dependencies]
-importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
+importlib-metadata = {version = ">=1", markers = "python_version < \"3.8\""}
 jeepney = {version = ">=0.4.2", markers = "sys_platform == \"linux\""}
 pywin32-ctypes = {version = "<0.1.0 || >0.1.0,<0.1.1 || >0.1.1", markers = "sys_platform == \"win32\""}
-SecretStorage = {version = ">=3", markers = "sys_platform == \"linux\""}
+SecretStorage = {version = ">=3.2", markers = "sys_platform == \"linux\""}
 
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-black (>=0.3.7)", "pytest-cov", "pytest-mypy"]
+testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [[package]]
 name = "lockfile"
@@ -430,37 +290,9 @@ category = "main"
 optional = false
 python-versions = "*"
 
-[[package]]
-name = "mock"
-version = "3.0.5"
-description = "Rolling backport of unittest.mock for all Pythons"
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
-[package.dependencies]
-funcsigs = {version = ">=1", markers = "python_version < \"3.3\""}
-six = "*"
-
-[package.extras]
-build = ["twine", "wheel", "blurb"]
-docs = ["sphinx"]
-test = ["pytest", "pytest-cov"]
-
 [[package]]
 name = "more-itertools"
-version = "5.0.0"
-description = "More routines for operating on iterables, beyond itertools"
-category = "dev"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-six = ">=1.0.0,<2.0.0"
-
-[[package]]
-name = "more-itertools"
-version = "8.5.0"
+version = "8.6.0"
 description = "More routines for operating on iterables, beyond itertools"
 category = "dev"
 optional = false
@@ -502,18 +334,6 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
-[[package]]
-name = "pathlib2"
-version = "2.3.5"
-description = "Object-oriented filesystem paths"
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-scandir = {version = "*", markers = "python_version < \"3.5\""}
-six = "*"
-
 [[package]]
 name = "pexpect"
 version = "4.8.0"
@@ -527,7 +347,7 @@ ptyprocess = ">=0.5"
 
 [[package]]
 name = "pkginfo"
-version = "1.5.0.1"
+version = "1.6.1"
 description = "Query metadatdata from sdists / bdists / installed packages."
 category = "main"
 optional = false
@@ -559,15 +379,11 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [package.dependencies]
-enum34 = {version = ">=1.1.10,<2.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
-functools32 = {version = ">=3.2.3-2,<4.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
 importlib-metadata = {version = ">=1.7.0,<2.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\" or python_version >= \"3.5\" and python_version < \"3.8\""}
-pathlib2 = {version = ">=2.3.5,<3.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
-typing = {version = ">=3.7.4.1,<4.0.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
 
 [[package]]
 name = "pre-commit"
-version = "2.7.1"
+version = "2.9.0"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
 category = "dev"
 optional = false
@@ -623,34 +439,6 @@ category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
-[[package]]
-name = "pytest"
-version = "4.6.11"
-description = "pytest: simple powerful testing with Python"
-category = "dev"
-optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-
-[package.dependencies]
-atomicwrites = ">=1.0"
-attrs = ">=17.4.0"
-colorama = {version = "*", markers = "sys_platform == \"win32\" and python_version != \"3.4\""}
-funcsigs = {version = ">=1.0", markers = "python_version < \"3.0\""}
-importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
-more-itertools = [
-    {version = ">=4.0.0,<6.0.0", markers = "python_version <= \"2.7\""},
-    {version = ">=4.0.0", markers = "python_version > \"2.7\""},
-]
-packaging = "*"
-pathlib2 = {version = ">=2.2.0", markers = "python_version < \"3.6\""}
-pluggy = ">=0.12,<1.0"
-py = ">=1.5.0"
-six = ">=1.10.0"
-wcwidth = "*"
-
-[package.extras]
-testing = ["argcomplete", "hypothesis (>=3.56)", "nose", "requests", "mock"]
-
 [[package]]
 name = "pytest"
 version = "5.4.3"
@@ -666,13 +454,12 @@ colorama = {version = "*", markers = "sys_platform == \"win32\""}
 importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 more-itertools = ">=4.0.0"
 packaging = "*"
-pathlib2 = {version = ">=2.2.0", markers = "python_version < \"3.6\""}
 pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"
 
 [package.extras]
-checkqa-mypy = ["mypy (v0.761)"]
+checkqa-mypy = ["mypy (==v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
 
 [[package]]
@@ -688,7 +475,7 @@ coverage = ">=4.4"
 pytest = ">=4.6"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests (2.0.2)", "six", "pytest-xdist", "virtualenv"]
+testing = ["fields", "hunter", "process-tests (==2.0.2)", "six", "pytest-xdist", "virtualenv"]
 
 [[package]]
 name = "pytest-mock"
@@ -699,7 +486,6 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [package.dependencies]
-mock = {version = "*", markers = "python_version < \"3.0\""}
 pytest = ">=2.7"
 
 [package.extras]
@@ -736,7 +522,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "requests"
-version = "2.24.0"
+version = "2.25.0"
 description = "Python HTTP for Humans."
 category = "main"
 optional = false
@@ -746,11 +532,11 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 certifi = ">=2017.4.17"
 chardet = ">=3.0.2,<4"
 idna = ">=2.5,<3"
-urllib3 = ">=1.21.1,<1.25.0 || >1.25.0,<1.25.1 || >1.25.1,<1.26"
+urllib3 = ">=1.21.1,<1.27"
 
 [package.extras]
 security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7)", "win-inet-pton"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
 
 [[package]]
 name = "requests-toolbelt"
@@ -763,38 +549,16 @@ python-versions = "*"
 [package.dependencies]
 requests = ">=2.0.1,<3.0.0"
 
-[[package]]
-name = "scandir"
-version = "1.10.0"
-description = "scandir, a better directory iterator and faster os.walk()"
-category = "main"
-optional = false
-python-versions = "*"
-
-[[package]]
-name = "secretstorage"
-version = "2.3.1"
-description = "Python bindings to FreeDesktop.org Secret Service API"
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-cryptography = "*"
-
-[package.extras]
-dbus-python = ["dbus-python"]
-
 [[package]]
 name = "secretstorage"
-version = "3.1.2"
+version = "3.2.0"
 description = "Python bindings to FreeDesktop.org Secret Service API"
 category = "main"
 optional = false
 python-versions = ">=3.5"
 
 [package.dependencies]
-cryptography = "*"
+cryptography = ">=2.0"
 jeepney = ">=0.4.2"
 
 [[package]]
@@ -805,17 +569,6 @@ category = "main"
 optional = false
 python-versions = "!=3.0,!=3.1,!=3.2,!=3.3,>=2.6"
 
-[[package]]
-name = "singledispatch"
-version = "3.4.0.3"
-description = "This library brings functools.singledispatch from Python 3.4 to Python 2.6-3.3."
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-six = "*"
-
 [[package]]
 name = "six"
 version = "1.15.0"
@@ -824,14 +577,6 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
-[[package]]
-name = "subprocess32"
-version = "3.5.4"
-description = "A backport of the subprocess module from Python 3 for use on 2.x."
-category = "main"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*, <4"
-
 [[package]]
 name = "termcolor"
 version = "1.1.0"
@@ -842,11 +587,11 @@ python-versions = "*"
 
 [[package]]
 name = "toml"
-version = "0.10.1"
+version = "0.10.2"
 description = "Python Library for Tom's Obvious, Minimal Language"
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
 name = "tomlkit"
@@ -856,14 +601,9 @@ category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
-[package.dependencies]
-enum34 = {version = ">=1.1,<2.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
-functools32 = {version = ">=3.2.3,<4.0.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\""}
-typing = {version = ">=3.6,<4.0", markers = "python_version >= \"2.7\" and python_version < \"2.8\" or python_version >= \"3.4\" and python_version < \"3.5\""}
-
 [[package]]
 name = "tox"
-version = "3.20.0"
+version = "3.20.1"
 description = "tox is a generic virtualenv management and test command line tool"
 category = "dev"
 optional = false
@@ -872,7 +612,7 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 [package.dependencies]
 colorama = {version = ">=0.4.1", markers = "platform_system == \"Windows\""}
 filelock = ">=3.0.0"
-importlib-metadata = {version = ">=0.12,<2", markers = "python_version < \"3.8\""}
+importlib-metadata = {version = ">=0.12,<3", markers = "python_version < \"3.8\""}
 packaging = ">=14"
 pluggy = ">=0.12.0"
 py = ">=1.4.17"
@@ -884,25 +624,6 @@ virtualenv = ">=16.0.0,<20.0.0 || >20.0.0,<20.0.1 || >20.0.1,<20.0.2 || >20.0.2,
 docs = ["pygments-github-lexers (>=0.0.5)", "sphinx (>=2.0.0)", "sphinxcontrib-autoprogram (>=0.1.5)", "towncrier (>=18.5.0)"]
 testing = ["flaky (>=3.4.0)", "freezegun (>=0.3.11)", "pathlib2 (>=2.3.3)", "psutil (>=5.6.1)", "pytest (>=4.0.0)", "pytest-cov (>=2.5.1)", "pytest-mock (>=1.10.0)", "pytest-randomly (>=1.0.0)", "pytest-xdist (>=1.22.2)"]
 
-[[package]]
-name = "typing"
-version = "3.7.4.3"
-description = "Type Hints for Python"
-category = "main"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
-[[package]]
-name = "typing-extensions"
-version = "3.7.4.3"
-description = "Backported and Experimental Type Hints for Python 3.5+"
-category = "main"
-optional = false
-python-versions = "*"
-
-[package.dependencies]
-typing = {version = ">=3.7.4", markers = "python_version < \"3.5\""}
-
 [[package]]
 name = "urllib3"
 version = "1.25.10"
@@ -914,11 +635,11 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
 secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)", "ipaddress"]
-socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
 name = "virtualenv"
-version = "20.0.31"
+version = "20.2.1"
 description = "Virtual Python Environment builder"
 category = "main"
 optional = false
@@ -928,14 +649,13 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
 appdirs = ">=1.4.3,<2"
 distlib = ">=0.3.1,<1"
 filelock = ">=3.0.0,<4"
-importlib-metadata = {version = ">=0.12,<2", markers = "python_version < \"3.8\""}
+importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 importlib-resources = {version = ">=1.0", markers = "python_version < \"3.7\""}
-pathlib2 = {version = ">=2.3.3,<3", markers = "python_version < \"3.4\" and sys_platform != \"win32\""}
 six = ">=1.9.0,<2"
 
 [package.extras]
 docs = ["proselint (>=0.10.2)", "sphinx (>=3)", "sphinx-argparse (>=0.2.5)", "sphinx-rtd-theme (>=0.4.3)", "towncrier (>=19.9.0rc1)"]
-testing = ["coverage (>=5)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "pytest-xdist (>=1.31.0)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
+testing = ["coverage (>=4)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "pytest-xdist (>=1.31.0)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
 
 [[package]]
 name = "wcwidth"
@@ -945,9 +665,6 @@ category = "dev"
 optional = false
 python-versions = "*"
 
-[package.dependencies]
-"backports.functools-lru-cache" = {version = ">=1.2.1", markers = "python_version < \"3.2\""}
-
 [[package]]
 name = "webencodings"
 version = "0.5.1"
@@ -958,23 +675,20 @@ python-versions = "*"
 
 [[package]]
 name = "zipp"
-version = "1.2.0"
+version = "3.4.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
 category = "main"
 optional = false
-python-versions = ">=2.7"
-
-[package.dependencies]
-contextlib2 = {version = "*", markers = "python_version < \"3.4\""}
+python-versions = ">=3.6"
 
 [package.extras]
 docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
-testing = ["pathlib2", "unittest2", "jaraco.itertools", "func-timeout"]
+testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]
 
 [metadata]
 lock-version = "1.1"
-python-versions = "~2.7 || ^3.5"
-content-hash = "1e774c9d8b7f6812d721cff08b51554f9a0cd051e2ae0e884421bcb56718d131"
+python-versions = "^3.6"
+content-hash = "077bd512e57f2e31d9f8b72b9a8b3a918f6844afdd3c7e25c2babc7f95fdfc4e"
 
 [metadata.files]
 appdirs = [
@@ -986,12 +700,8 @@ atomicwrites = [
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-]
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+    {file = "attrs-20.3.0-py2.py3-none-any.whl", hash = "sha256:31b2eced602aa8423c2aea9c76a724617ed67cf9513173fd3a4f03e3a929c7e6"},
+    {file = "attrs-20.3.0.tar.gz", hash = "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"},
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@@ -1002,8 +712,8 @@ cachy = [
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+    {file = "certifi-2020.11.8.tar.gz", hash = "sha256:f05def092c44fbf25834a51509ef6e631dc19765ab8a57b4e7ab85531f0a9cf4"},
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@@ -1060,16 +770,8 @@ clikit = [
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@@ -1112,71 +814,47 @@ crashtest = [
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-    {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
+    {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
+    {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
 tomlkit = [
     {file = "tomlkit-0.7.0-py2.py3-none-any.whl", hash = "sha256:6babbd33b17d5c9691896b0e68159215a9387ebfa938aa3ac42f4a4beeb2b831"},
     {file = "tomlkit-0.7.0.tar.gz", hash = "sha256:ac57f29693fab3e309ea789252fcce3061e19110085aa31af5446ca749325618"},
 ]
 tox = [
-    {file = "tox-3.20.0-py2.py3-none-any.whl", hash = "sha256:e6318f404aff16522ff5211c88cab82b39af121735a443674e4e2e65f4e4637b"},
-    {file = "tox-3.20.0.tar.gz", hash = "sha256:eb629ddc60e8542fd4a1956b2462e3b8771d49f1ff630cecceacaa0fbfb7605a"},
-]
-typing = [
-    {file = "typing-3.7.4.3-py2-none-any.whl", hash = "sha256:283d868f5071ab9ad873e5e52268d611e851c870a2ba354193026f2dfb29d8b5"},
-    {file = "typing-3.7.4.3.tar.gz", hash = "sha256:1187fb9c82fd670d10aa07bbb6cfcfe4bdda42d6fab8d5134f04e8c4d0b71cc9"},
-]
-typing-extensions = [
-    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
-    {file = "typing_extensions-3.7.4.3-py3-none-any.whl", hash = "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918"},
-    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
+    {file = "tox-3.20.1-py2.py3-none-any.whl", hash = "sha256:42ce19ce5dc2f6d6b1fdc5666c476e1f1e2897359b47e0aa3a5b774f335d57c2"},
+    {file = "tox-3.20.1.tar.gz", hash = "sha256:4321052bfe28f9d85082341ca8e233e3ea901fdd14dab8a5d3fbd810269fbaf6"},
 ]
 urllib3 = [
     {file = "urllib3-1.25.10-py2.py3-none-any.whl", hash = "sha256:e7983572181f5e1522d9c98453462384ee92a0be7fac5f1413a1e35c56cc0461"},
     {file = "urllib3-1.25.10.tar.gz", hash = "sha256:91056c15fa70756691db97756772bb1eb9678fa585d9184f24534b100dc60f4a"},
 ]
 virtualenv = [
-    {file = "virtualenv-20.0.31-py2.py3-none-any.whl", hash = "sha256:e0305af10299a7fb0d69393d8f04cb2965dda9351140d11ac8db4e5e3970451b"},
-    {file = "virtualenv-20.0.31.tar.gz", hash = "sha256:43add625c53c596d38f971a465553f6318decc39d98512bc100fa1b1e839c8dc"},
+    {file = "virtualenv-20.2.1-py2.py3-none-any.whl", hash = "sha256:07cff122e9d343140366055f31be4dcd61fd598c69d11cd33a9d9c8df4546dd7"},
+    {file = "virtualenv-20.2.1.tar.gz", hash = "sha256:e0aac7525e880a429764cefd3aaaff54afb5d9f25c82627563603f5d7de5a6e5"},
 ]
 wcwidth = [
     {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
@@ -1414,6 +1040,6 @@ webencodings = [
     {file = "webencodings-0.5.1.tar.gz", hash = "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"},
 ]
 zipp = [
-    {file = "zipp-1.2.0-py2.py3-none-any.whl", hash = "sha256:e0d9e63797e483a30d27e09fffd308c59a700d365ec34e93cc100844168bf921"},
-    {file = "zipp-1.2.0.tar.gz", hash = "sha256:c70410551488251b0fee67b460fb9a536af8d6f9f008ad10ac51f615b6a521b1"},
+    {file = "zipp-3.4.0-py3-none-any.whl", hash = "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108"},
+    {file = "zipp-3.4.0.tar.gz", hash = "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"},
 ]
diff --git a/poetry/config/config.py b/poetry/config/config.py
index 666f2e74ce2..6be9457cffe 100644
--- a/poetry/config/config.py
+++ b/poetry/config/config.py
@@ -4,14 +4,13 @@
 import re
 
 from copy import deepcopy
+from pathlib import Path
 from typing import Any
 from typing import Callable
 from typing import Dict
 from typing import Optional
 
 from poetry.locations import CACHE_DIR
-from poetry.utils._compat import Path
-from poetry.utils._compat import basestring
 
 from .config_source import ConfigSource
 from .dict_config_source import DictConfigSource
@@ -131,7 +130,7 @@ def get(self, setting_name, default=None):  # type: (str, Any) -> Any
         return self.process(value)
 
     def process(self, value):  # type: (Any) -> Any
-        if not isinstance(value, basestring):
+        if not isinstance(value, str):
             return value
 
         return re.sub(r"{(.+?)}", lambda m: self.get(m.group(1)), value)
diff --git a/poetry/console/application.py b/poetry/console/application.py
index 8fb32480f49..027fec85776 100644
--- a/poetry/console/application.py
+++ b/poetry/console/application.py
@@ -60,8 +60,9 @@ def __init__(self):
 
     @property
     def poetry(self):
+        from pathlib import Path
+
         from poetry.factory import Factory
-        from poetry.utils._compat import Path
 
         if self._poetry is not None:
             return self._poetry
diff --git a/poetry/console/commands/check.py b/poetry/console/commands/check.py
index bb97da14640..72c7ca4d947 100644
--- a/poetry/console/commands/check.py
+++ b/poetry/console/commands/check.py
@@ -1,6 +1,7 @@
+from pathlib import Path
+
 from poetry.core.pyproject.toml import PyProjectTOML
 from poetry.factory import Factory
-from poetry.utils._compat import Path
 
 from .command import Command
 
diff --git a/poetry/console/commands/config.py b/poetry/console/commands/config.py
index 2e84429ec36..310524d4ee2 100644
--- a/poetry/console/commands/config.py
+++ b/poetry/console/commands/config.py
@@ -41,10 +41,11 @@ class ConfigCommand(Command):
 
     @property
     def unique_config_values(self):
+        from pathlib import Path
+
         from poetry.config.config import boolean_normalizer
         from poetry.config.config import boolean_validator
         from poetry.locations import CACHE_DIR
-        from poetry.utils._compat import Path
 
         unique_config_values = {
             "cache-dir": (
@@ -75,10 +76,10 @@ def unique_config_values(self):
         return unique_config_values
 
     def handle(self):
+        from pathlib import Path
+
         from poetry.config.file_config_source import FileConfigSource
         from poetry.locations import CONFIG_DIR
-        from poetry.utils._compat import Path
-        from poetry.utils._compat import basestring
 
         config = Factory.create_config(self.io)
         config_file = TOMLFile(Path(CONFIG_DIR) / "config.toml")
@@ -134,7 +135,7 @@ def handle(self):
 
                 value = config.get(setting_key)
 
-                if not isinstance(value, basestring):
+                if not isinstance(value, str):
                     value = json.dumps(value)
 
                 self.line(value)
@@ -267,8 +268,6 @@ def _handle_single_value(self, source, key, callbacks, values):
         return 0
 
     def _list_configuration(self, config, raw, k=""):
-        from poetry.utils._compat import basestring
-
         orig_k = k
         for key, value in sorted(config.items()):
             if k + key in self.LIST_PROHIBITED_SETTINGS:
@@ -293,7 +292,7 @@ def _list_configuration(self, config, raw, k=""):
                 message = "<c1>{}</c1> = <c2>{}</c2>".format(
                     k + key, json.dumps(raw_val)
                 )
-            elif isinstance(raw_val, basestring) and raw_val != value:
+            elif isinstance(raw_val, str) and raw_val != value:
                 message = "<c1>{}</c1> = <c2>{}</c2>  # {}".format(
                     k + key, json.dumps(raw_val), value
                 )
diff --git a/poetry/console/commands/init.py b/poetry/console/commands/init.py
index af72318c31a..ef56484abd1 100644
--- a/poetry/console/commands/init.py
+++ b/poetry/console/commands/init.py
@@ -4,7 +4,9 @@
 import os
 import re
 import sys
+import urllib.parse
 
+from pathlib import Path
 from typing import Dict
 from typing import List
 from typing import Tuple
@@ -15,9 +17,6 @@
 
 from poetry.core.pyproject import PyProjectException
 from poetry.core.pyproject.toml import PyProjectTOML
-from poetry.utils._compat import OrderedDict
-from poetry.utils._compat import Path
-from poetry.utils._compat import urlparse
 
 from .command import Command
 from .env_command import EnvCommand
@@ -63,9 +62,10 @@ def __init__(self):
         self._pool = None
 
     def handle(self):
+        from pathlib import Path
+
         from poetry.core.vcs.git import GitConfig
         from poetry.layouts import layout
-        from poetry.utils._compat import Path
         from poetry.utils.env import SystemEnv
 
         pyproject = PyProjectTOML(Path.cwd() / "pyproject.toml")
@@ -390,7 +390,7 @@ def _parse_requirements(
                 extras = [e.strip() for e in extras_m.group(1).split(",")]
                 requirement, _ = requirement.split("[")
 
-            url_parsed = urlparse.urlparse(requirement)
+            url_parsed = urllib.parse.urlparse(requirement)
             if url_parsed.scheme and url_parsed.netloc:
                 # Url
                 if url_parsed.scheme in ["git+https", "git+ssh"]:
@@ -400,7 +400,7 @@ def _parse_requirements(
                     parsed = ParsedUrl.parse(requirement)
                     url = Git.normalize_url(requirement)
 
-                    pair = OrderedDict([("name", parsed.name), ("git", url.url)])
+                    pair = dict([("name", parsed.name), ("git", url.url)])
                     if parsed.rev:
                         pair["rev"] = url.revision
 
@@ -417,9 +417,7 @@ def _parse_requirements(
                 elif url_parsed.scheme in ["http", "https"]:
                     package = Provider.get_package_from_url(requirement)
 
-                    pair = OrderedDict(
-                        [("name", package.name), ("url", package.source_url)]
-                    )
+                    pair = dict([("name", package.name), ("url", package.source_url)])
                     if extras:
                         pair["extras"] = extras
 
@@ -435,7 +433,7 @@ def _parse_requirements(
                     package = Provider.get_package_from_directory(path)
 
                 result.append(
-                    OrderedDict(
+                    dict(
                         [
                             ("name", package.name),
                             ("path", path.relative_to(cwd).as_posix()),
@@ -451,7 +449,7 @@ def _parse_requirements(
             )
             pair = pair.strip()
 
-            require = OrderedDict()
+            require = dict()
             if " " in pair:
                 name, version = pair.split(" ", 2)
                 extras_m = re.search(r"\[([\w\d,-_]+)\]$", name)
diff --git a/poetry/console/commands/new.py b/poetry/console/commands/new.py
index 481b0577bcc..4856ff69c96 100644
--- a/poetry/console/commands/new.py
+++ b/poetry/console/commands/new.py
@@ -20,10 +20,11 @@ class NewCommand(Command):
     ]
 
     def handle(self):
+        from pathlib import Path
+
         from poetry.core.semver import parse_constraint
         from poetry.core.vcs.git import GitConfig
         from poetry.layouts import layout
-        from poetry.utils._compat import Path
         from poetry.utils.env import SystemEnv
 
         if self.option("src"):
diff --git a/poetry/console/commands/publish.py b/poetry/console/commands/publish.py
index 557cd1d7ab7..98d4165fd8d 100644
--- a/poetry/console/commands/publish.py
+++ b/poetry/console/commands/publish.py
@@ -1,6 +1,6 @@
-from cleo import option
+from pathlib import Path
 
-from poetry.utils._compat import Path
+from cleo import option
 
 from .command import Command
 
diff --git a/poetry/console/commands/self/update.py b/poetry/console/commands/self/update.py
index f98da89632f..7d477ddce16 100644
--- a/poetry/console/commands/self/update.py
+++ b/poetry/console/commands/self/update.py
@@ -62,7 +62,7 @@ class SelfUpdateCommand(Command):
 
     @property
     def home(self):
-        from poetry.utils._compat import Path
+        from pathlib import Path
 
         return Path(os.environ.get("POETRY_HOME", "~/.poetry")).expanduser()
 
@@ -239,7 +239,7 @@ def process(self, *args):
         return subprocess.check_output(list(args), stderr=subprocess.STDOUT)
 
     def _check_recommended_installation(self):
-        from poetry.utils._compat import Path
+        from pathlib import Path
 
         current = Path(__file__)
         try:
diff --git a/poetry/console/config/application_config.py b/poetry/console/config/application_config.py
index 09cc2cb1b44..492a2137259 100644
--- a/poetry/console/config/application_config.py
+++ b/poetry/console/config/application_config.py
@@ -30,7 +30,7 @@
 from poetry.console.commands.installer_command import InstallerCommand
 from poetry.console.logging.io_formatter import IOFormatter
 from poetry.console.logging.io_handler import IOHandler
-from poetry.utils._compat import PY36
+from poetry.mixology.solutions.providers import PythonRequirementSolutionProvider
 
 
 class ApplicationConfig(BaseApplicationConfig):
@@ -55,14 +55,9 @@ def configure(self):
         self.add_event_listener(PRE_HANDLE, self.set_env)
         self.add_event_listener(PRE_HANDLE, self.set_installer)
 
-        if PY36:
-            from poetry.mixology.solutions.providers import (
-                PythonRequirementSolutionProvider,
-            )
-
-            self._solution_provider_repository.register_solution_providers(
-                [PythonRequirementSolutionProvider]
-            )
+        self._solution_provider_repository.register_solution_providers(
+            [PythonRequirementSolutionProvider]
+        )
 
     def register_command_loggers(
         self, event, event_name, _
diff --git a/poetry/factory.py b/poetry/factory.py
index 08a6faca170..b38f6da25ae 100644
--- a/poetry/factory.py
+++ b/poetry/factory.py
@@ -1,6 +1,7 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
+from pathlib import Path
 from typing import Dict
 from typing import Optional
 
@@ -16,7 +17,6 @@
 from .packages.locker import Locker
 from .poetry import Poetry
 from .repositories.pypi_repository import PyPiRepository
-from .utils._compat import Path
 
 
 class Factory(BaseFactory):
diff --git a/poetry/inspection/info.py b/poetry/inspection/info.py
index 251dac95f91..94ac097aeac 100644
--- a/poetry/inspection/info.py
+++ b/poetry/inspection/info.py
@@ -4,6 +4,7 @@
 import tarfile
 import zipfile
 
+from pathlib import Path
 from typing import Dict
 from typing import Iterator
 from typing import List
@@ -17,8 +18,6 @@
 from poetry.core.packages import ProjectPackage
 from poetry.core.packages import dependency_from_pep_508
 from poetry.core.pyproject.toml import PyProjectTOML
-from poetry.core.utils._compat import PY35
-from poetry.core.utils._compat import Path
 from poetry.core.utils.helpers import parse_requires
 from poetry.core.utils.helpers import temporary_directory
 from poetry.core.version.markers import InvalidMarker
@@ -364,13 +363,10 @@ def _find_dist_info(path):  # type: (Path) -> Iterator[Path]
         :param path: Path to search.
         """
         pattern = "**/*.*-info"
-        if PY35:
-            # Sometimes pathlib will fail on recursive symbolic links, so we need to workaround it
-            # and use the glob module instead. Note that this does not happen with pathlib2
-            # so it's safe to use it for Python < 3.4.
-            directories = glob.iglob(path.joinpath(pattern).as_posix(), recursive=True)
-        else:
-            directories = path.glob(pattern)
+        # Sometimes pathlib will fail on recursive symbolic links, so we need to workaround it
+        # and use the glob module instead. Note that this does not happen with pathlib2
+        # so it's safe to use it for Python < 3.4.
+        directories = glob.iglob(path.joinpath(pattern).as_posix(), recursive=True)
 
         for d in directories:
             yield Path(d)
diff --git a/poetry/installation/authenticator.py b/poetry/installation/authenticator.py
index 69adb844809..1e7a72e751a 100644
--- a/poetry/installation/authenticator.py
+++ b/poetry/installation/authenticator.py
@@ -1,5 +1,6 @@
 import logging
 import time
+import urllib.parse
 
 from typing import TYPE_CHECKING
 
@@ -8,7 +9,6 @@
 import requests.exceptions
 
 from poetry.exceptions import PoetryException
-from poetry.utils._compat import urlparse
 from poetry.utils.password_manager import PasswordManager
 
 
@@ -107,7 +107,7 @@ def request(
     def get_credentials_for_url(
         self, url
     ):  # type: (str) -> Tuple[Optional[str], Optional[str]]
-        parsed_url = urlparse.urlsplit(url)
+        parsed_url = urllib.parse.urlsplit(url)
 
         netloc = parsed_url.netloc
 
@@ -130,7 +130,7 @@ def get_credentials_for_url(
                     credentials = auth, None
 
                 credentials = tuple(
-                    None if x is None else urlparse.unquote(x) for x in credentials
+                    None if x is None else urllib.parse.unquote(x) for x in credentials
                 )
 
         if credentials[0] is not None or credentials[1] is not None:
@@ -156,7 +156,7 @@ def _get_credentials_for_netloc_from_config(
             if not url:
                 continue
 
-            parsed_url = urlparse.urlsplit(url)
+            parsed_url = urllib.parse.urlsplit(url)
 
             if netloc == parsed_url.netloc:
                 auth = self._password_manager.get_http_auth(repository_name)
diff --git a/poetry/installation/chef.py b/poetry/installation/chef.py
index 669ce17768e..6009ac0a98d 100644
--- a/poetry/installation/chef.py
+++ b/poetry/installation/chef.py
@@ -1,10 +1,10 @@
 import hashlib
 import json
 
+from pathlib import Path
 from typing import TYPE_CHECKING
 
 from poetry.core.packages.utils.link import Link
-from poetry.utils._compat import Path
 
 from .chooser import InvalidWheelName
 from .chooser import Wheel
diff --git a/poetry/installation/executor.py b/poetry/installation/executor.py
index a65dbb4a0e1..5523ed2813f 100644
--- a/poetry/installation/executor.py
+++ b/poetry/installation/executor.py
@@ -7,17 +7,13 @@
 
 from concurrent.futures import ThreadPoolExecutor
 from concurrent.futures import wait
+from pathlib import Path
 from subprocess import CalledProcessError
 
 from poetry.core.packages.file_dependency import FileDependency
 from poetry.core.packages.utils.link import Link
 from poetry.core.pyproject.toml import PyProjectTOML
 from poetry.io.null_io import NullIO
-from poetry.utils._compat import PY2
-from poetry.utils._compat import WINDOWS
-from poetry.utils._compat import OrderedDict
-from poetry.utils._compat import Path
-from poetry.utils._compat import cpu_count
 from poetry.utils._compat import decode
 from poetry.utils.env import EnvCommandError
 from poetry.utils.helpers import safe_rmtree
@@ -45,13 +41,13 @@ def __init__(self, env, pool, config, io, parallel=None):
         if parallel is None:
             parallel = config.get("installer.parallel", True)
 
-        if parallel and not (PY2 and WINDOWS):
+        if parallel:
             # This should be directly handled by ThreadPoolExecutor
             # however, on some systems the number of CPUs cannot be determined
             # (it raises a NotImplementedError), so, in this case, we assume
             # that the system only has one CPU.
             try:
-                self._max_workers = cpu_count() + 4
+                self._max_workers = os.cpu_count() + 4
             except NotImplementedError:
                 self._max_workers = 5
         else:
@@ -62,7 +58,7 @@ def __init__(self, env, pool, config, io, parallel=None):
         self._executed_operations = 0
         self._executed = {"install": 0, "update": 0, "uninstall": 0}
         self._skipped = {"install": 0, "update": 0, "uninstall": 0}
-        self._sections = OrderedDict()
+        self._sections = dict()
         self._lock = threading.Lock()
         self._shutdown = False
 
@@ -107,7 +103,7 @@ def execute(self, operations):  # type: (Operation) -> int
 
         # We group operations by priority
         groups = itertools.groupby(operations, key=lambda o: -o.priority)
-        self._sections = OrderedDict()
+        self._sections = dict()
         for _, group in groups:
             tasks = []
             serial_operations = []
diff --git a/poetry/installation/pip_installer.py b/poetry/installation/pip_installer.py
index b8fb97314be..df1249737a1 100644
--- a/poetry/installation/pip_installer.py
+++ b/poetry/installation/pip_installer.py
@@ -1,5 +1,6 @@
 import os
 import tempfile
+import urllib.parse
 
 from subprocess import CalledProcessError
 
@@ -14,12 +15,6 @@
 from .base_installer import BaseInstaller
 
 
-try:
-    import urllib.parse as urlparse
-except ImportError:
-    import urlparse
-
-
 class PipInstaller(BaseInstaller):
     def __init__(self, env, io, pool):  # type: (Env, IO, Pool) -> None
         self._env = env
@@ -44,7 +39,7 @@ def install(self, package, update=False):
             and package.source_url
         ):
             repository = self._pool.repository(package.source_reference)
-            parsed = urlparse.urlparse(package.source_url)
+            parsed = urllib.parse.urlparse(package.source_url)
             if parsed.scheme == "http":
                 self._io.error(
                     "    <warning>Installing from unsecure host: {}</warning>".format(
diff --git a/poetry/locations.py b/poetry/locations.py
index 003950d500d..5bd4b7feb17 100644
--- a/poetry/locations.py
+++ b/poetry/locations.py
@@ -1,4 +1,5 @@
-from .utils._compat import Path
+from pathlib import Path
+
 from .utils.appdirs import user_cache_dir
 from .utils.appdirs import user_config_dir
 
diff --git a/poetry/masonry/builders/editable.py b/poetry/masonry/builders/editable.py
index 74d1f69c886..dc4be9af4cc 100644
--- a/poetry/masonry/builders/editable.py
+++ b/poetry/masonry/builders/editable.py
@@ -5,13 +5,13 @@
 import shutil
 
 from base64 import urlsafe_b64encode
+from pathlib import Path
 
 from poetry.core.masonry.builders.builder import Builder
 from poetry.core.masonry.builders.sdist import SdistBuilder
 from poetry.core.masonry.utils.package_include import PackageInclude
 from poetry.core.semver.version import Version
 from poetry.utils._compat import WINDOWS
-from poetry.utils._compat import Path
 from poetry.utils._compat import decode
 from poetry.utils.helpers import is_dir_writable
 
diff --git a/poetry/mixology/partial_solution.py b/poetry/mixology/partial_solution.py
index df17f7184b2..55230425ce8 100644
--- a/poetry/mixology/partial_solution.py
+++ b/poetry/mixology/partial_solution.py
@@ -1,4 +1,3 @@
-from collections import OrderedDict
 from typing import Dict
 from typing import List
 
@@ -26,13 +25,13 @@ def __init__(self):
         self._assignments = []  # type: List[Assignment]
 
         # The decisions made for each package.
-        self._decisions = OrderedDict()  # type: Dict[str, Package]
+        self._decisions = dict()  # type: Dict[str, Package]
 
         # The intersection of all positive Assignments for each package, minus any
         # negative Assignments that refer to that package.
         #
         # This is derived from self._assignments.
-        self._positive = OrderedDict()  # type: Dict[str, Term]
+        self._positive = dict()  # type: Dict[str, Term]
 
         # The union of all negative Assignments for each package.
         #
@@ -40,7 +39,7 @@ def __init__(self):
         # map.
         #
         # This is derived from self._assignments.
-        self._negative = OrderedDict()  # type: Dict[str, Dict[str, Term]]
+        self._negative = dict()  # type: Dict[str, Dict[str, Term]]
 
         # The number of distinct solutions that have been attempted so far.
         self._attempted_solutions = 1
diff --git a/poetry/packages/locker.py b/poetry/packages/locker.py
index f1637407068..8cb6d91f916 100644
--- a/poetry/packages/locker.py
+++ b/poetry/packages/locker.py
@@ -5,6 +5,7 @@
 
 from copy import deepcopy
 from hashlib import sha256
+from pathlib import Path
 from typing import Dict
 from typing import Iterable
 from typing import Iterator
@@ -33,8 +34,6 @@
 from poetry.core.version.markers import parse_marker
 from poetry.core.version.requirements import InvalidRequirement
 from poetry.packages import DependencyPackage
-from poetry.utils._compat import OrderedDict
-from poetry.utils._compat import Path
 from poetry.utils.extras import get_extra_package_names
 
 
@@ -412,7 +411,7 @@ def set_lock_data(self, root, packages):  # type: (...) -> bool
                 for extra, deps in sorted(root.extras.items())
             }
 
-        lock["metadata"] = OrderedDict(
+        lock["metadata"] = dict(
             [
                 ("lock-version", self._VERSION),
                 ("python-versions", root.python_versions),
@@ -525,7 +524,7 @@ def _dump_package(self, package):  # type: (Package) -> dict
                     constraint["version"] for constraint in constraints
                 ]
 
-        data = OrderedDict(
+        data = dict(
             [
                 ("name", package.pretty_name),
                 ("version", package.pretty_version),
@@ -569,7 +568,7 @@ def _dump_package(self, package):  # type: (Package) -> dict
                     )
                 ).as_posix()
 
-            data["source"] = OrderedDict()
+            data["source"] = dict()
 
             if package.source_type:
                 data["source"]["type"] = package.source_type
diff --git a/poetry/poetry.py b/poetry/poetry.py
index 4878f0a22aa..325c6074df3 100644
--- a/poetry/poetry.py
+++ b/poetry/poetry.py
@@ -1,6 +1,8 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
+from pathlib import Path
+
 from poetry.core.packages import ProjectPackage
 from poetry.core.poetry import Poetry as BasePoetry
 
@@ -8,7 +10,6 @@
 from .config.config import Config
 from .packages import Locker
 from .repositories.pool import Pool
-from .utils._compat import Path
 
 
 class Poetry(BasePoetry):
diff --git a/poetry/publishing/publisher.py b/poetry/publishing/publisher.py
index 67515f77f64..5cec7eca2fe 100644
--- a/poetry/publishing/publisher.py
+++ b/poetry/publishing/publisher.py
@@ -1,8 +1,8 @@
 import logging
 
+from pathlib import Path
 from typing import Optional
 
-from poetry.utils._compat import Path
 from poetry.utils.helpers import get_cert
 from poetry.utils.helpers import get_client_cert
 from poetry.utils.password_manager import PasswordManager
diff --git a/poetry/publishing/uploader.py b/poetry/publishing/uploader.py
index 7c0783d1cac..bb1673e3bff 100644
--- a/poetry/publishing/uploader.py
+++ b/poetry/publishing/uploader.py
@@ -1,6 +1,7 @@
 import hashlib
 import io
 
+from pathlib import Path
 from typing import Any
 from typing import Dict
 from typing import List
@@ -21,7 +22,6 @@
 from poetry.core.masonry.metadata import Metadata
 from poetry.core.masonry.utils.helpers import escape_name
 from poetry.core.masonry.utils.helpers import escape_version
-from poetry.utils._compat import Path
 from poetry.utils.helpers import normalize_version
 from poetry.utils.patterns import wheel_file_re
 
diff --git a/poetry/puzzle/provider.py b/poetry/puzzle/provider.py
index 333dfc60cf3..e9719a924d9 100644
--- a/poetry/puzzle/provider.py
+++ b/poetry/puzzle/provider.py
@@ -1,8 +1,10 @@
 import logging
 import os
 import re
+import urllib.parse
 
 from contextlib import contextmanager
+from pathlib import Path
 from tempfile import mkdtemp
 from typing import Any
 from typing import List
@@ -30,9 +32,6 @@
 from poetry.packages.package_collection import PackageCollection
 from poetry.puzzle.exceptions import OverrideNeeded
 from poetry.repositories import Pool
-from poetry.utils._compat import OrderedDict
-from poetry.utils._compat import Path
-from poetry.utils._compat import urlparse
 from poetry.utils.env import Env
 from poetry.utils.helpers import download_file
 from poetry.utils.helpers import safe_rmtree
@@ -324,7 +323,7 @@ def search_for_url(self, dependency):  # type: (URLDependency) -> List[Package]
     def get_package_from_url(cls, url):  # type: (str) -> Package
         with temporary_directory() as temp_dir:
             temp_dir = Path(temp_dir)
-            file_name = os.path.basename(urlparse.urlparse(url).path)
+            file_name = os.path.basename(urllib.parse.urlparse(url).path)
             download_file(url, str(temp_dir / file_name))
 
             package = cls.get_package_from_file(temp_dir / file_name)
@@ -517,7 +516,7 @@ def complete_package(
         # An example of this is:
         #   - pypiwin32 (220); sys_platform == "win32" and python_version >= "3.6"
         #   - pypiwin32 (219); sys_platform == "win32" and python_version < "3.6"
-        duplicates = OrderedDict()
+        duplicates = dict()
         for dep in dependencies:
             if dep.name not in duplicates:
                 duplicates[dep.name] = []
@@ -533,7 +532,7 @@ def complete_package(
             self.debug("<debug>Duplicate dependencies for {}</debug>".format(dep_name))
 
             # Regrouping by constraint
-            by_constraint = OrderedDict()
+            by_constraint = dict()
             for dep in deps:
                 if dep.constraint not in by_constraint:
                     by_constraint[dep.constraint] = []
diff --git a/poetry/repositories/installed_repository.py b/poetry/repositories/installed_repository.py
index 1320fdd6698..29424dbaeb5 100644
--- a/poetry/repositories/installed_repository.py
+++ b/poetry/repositories/installed_repository.py
@@ -1,11 +1,11 @@
 import itertools
 
+from pathlib import Path
 from typing import Set
 from typing import Union
 
 from poetry.core.packages import Package
 from poetry.core.utils.helpers import module_name
-from poetry.utils._compat import Path
 from poetry.utils._compat import metadata
 from poetry.utils.env import Env
 
diff --git a/poetry/repositories/legacy_repository.py b/poetry/repositories/legacy_repository.py
index f9963ddc4d4..e059c3bb8d4 100644
--- a/poetry/repositories/legacy_repository.py
+++ b/poetry/repositories/legacy_repository.py
@@ -1,8 +1,10 @@
 import cgi
 import re
+import urllib.parse
 import warnings
 
 from collections import defaultdict
+from pathlib import Path
 from typing import Generator
 from typing import Optional
 from typing import Union
@@ -21,7 +23,6 @@
 from poetry.core.semver import VersionRange
 from poetry.core.semver import parse_constraint
 from poetry.locations import REPOSITORY_CACHE_DIR
-from poetry.utils._compat import Path
 from poetry.utils.helpers import canonicalize_name
 from poetry.utils.patterns import wheel_file_re
 
@@ -33,11 +34,6 @@
 from .pypi_repository import PyPiRepository
 
 
-try:
-    import urllib.parse as urlparse
-except ImportError:
-    import urlparse
-
 try:
     from html import unescape
 except ImportError:
@@ -115,7 +111,7 @@ def links(self):  # type: () -> Generator[Link]
         for anchor in self._parsed.findall(".//a"):
             if anchor.get("href"):
                 href = anchor.get("href")
-                url = self.clean_link(urlparse.urljoin(self._url, href))
+                url = self.clean_link(urllib.parse.urljoin(self._url, href))
                 pyrequire = anchor.get("data-requires-python")
                 pyrequire = unescape(pyrequire) if pyrequire else None
 
@@ -219,7 +215,7 @@ def authenticated_url(self):  # type: () -> str
         if not self._session.auth:
             return self.url
 
-        parsed = urlparse.urlparse(self.url)
+        parsed = urllib.parse.urlparse(self.url)
 
         return "{scheme}://{username}:{password}@{netloc}{path}".format(
             scheme=parsed.scheme,
diff --git a/poetry/repositories/pypi_repository.py b/poetry/repositories/pypi_repository.py
index 16105992a1c..715ba557379 100644
--- a/poetry/repositories/pypi_repository.py
+++ b/poetry/repositories/pypi_repository.py
@@ -1,7 +1,9 @@
 import logging
 import os
+import urllib.parse
 
 from collections import defaultdict
+from pathlib import Path
 from typing import Dict
 from typing import List
 from typing import Union
@@ -24,7 +26,6 @@
 from poetry.core.semver.exceptions import ParseVersionError
 from poetry.core.version.markers import parse_marker
 from poetry.locations import REPOSITORY_CACHE_DIR
-from poetry.utils._compat import Path
 from poetry.utils._compat import to_str
 from poetry.utils.helpers import download_file
 from poetry.utils.helpers import temporary_directory
@@ -35,12 +36,6 @@
 from .remote_repository import RemoteRepository
 
 
-try:
-    import urllib.parse as urlparse
-except ImportError:
-    import urlparse
-
-
 cache_control_logger.setLevel(logging.ERROR)
 
 logger = logging.getLogger(__name__)
@@ -424,11 +419,13 @@ def _get_info_from_urls(self, urls):  # type: (Dict[str, List[str]]) -> PackageI
 
     def _get_info_from_wheel(self, url):  # type: (str) -> PackageInfo
         self._log(
-            "Downloading wheel: {}".format(urlparse.urlparse(url).path.rsplit("/")[-1]),
+            "Downloading wheel: {}".format(
+                urllib.parse.urlparse(url).path.rsplit("/")[-1]
+            ),
             level="debug",
         )
 
-        filename = os.path.basename(urlparse.urlparse(url).path.rsplit("/")[-1])
+        filename = os.path.basename(urllib.parse.urlparse(url).path.rsplit("/")[-1])
 
         with temporary_directory() as temp_dir:
             filepath = Path(temp_dir) / filename
@@ -438,11 +435,13 @@ def _get_info_from_wheel(self, url):  # type: (str) -> PackageInfo
 
     def _get_info_from_sdist(self, url):  # type: (str) -> PackageInfo
         self._log(
-            "Downloading sdist: {}".format(urlparse.urlparse(url).path.rsplit("/")[-1]),
+            "Downloading sdist: {}".format(
+                urllib.parse.urlparse(url).path.rsplit("/")[-1]
+            ),
             level="debug",
         )
 
-        filename = os.path.basename(urlparse.urlparse(url).path)
+        filename = os.path.basename(urllib.parse.urlparse(url).path)
 
         with temporary_directory() as temp_dir:
             filepath = Path(temp_dir) / filename
diff --git a/poetry/utils/_compat.py b/poetry/utils/_compat.py
index 937f9b300e6..1ede84dcd3f 100644
--- a/poetry/utils/_compat.py
+++ b/poetry/utils/_compat.py
@@ -2,236 +2,16 @@
 
 
 try:
-    from functools32 import lru_cache
-except ImportError:
-    from functools import lru_cache
-
-try:
-    from glob2 import glob
-except ImportError:
-    from glob import glob
-
-try:
-    import zipfile as zipp
-
     from importlib import metadata
 except ImportError:
-    import importlib_metadata as metadata
-    import zipp
-
-try:
-    import urllib.parse as urlparse
-except ImportError:
-    import urlparse
-
-try:
-    from os import cpu_count
-except ImportError:  # Python 2
-    from multiprocessing import cpu_count
-
-try:  # Python 2
-    long = long
-    unicode = unicode
-    basestring = basestring
-except NameError:  # Python 3
-    long = int
-    unicode = str
-    basestring = str
-
-
-PY2 = sys.version_info[0] == 2
-PY34 = sys.version_info >= (3, 4)
-PY35 = sys.version_info >= (3, 5)
-PY36 = sys.version_info >= (3, 6)
+    # compatibility for python <3.8
+    import importlib_metadata as metadata  # noqa
 
 WINDOWS = sys.platform == "win32"
 
-try:
-    from shlex import quote
-except ImportError:
-    # PY2
-    from pipes import quote  # noqa
-
-if PY34:
-    from importlib.machinery import EXTENSION_SUFFIXES
-else:
-    from imp import get_suffixes
-
-    EXTENSION_SUFFIXES = [suffix[0] for suffix in get_suffixes()]
-
-
-if PY35:
-    from pathlib import Path
-else:
-    from pathlib2 import Path
-
-if not PY36:
-    from collections import OrderedDict
-else:
-    OrderedDict = dict
-
-
-if PY35:
-    import subprocess as subprocess
-
-    from subprocess import CalledProcessError
-else:
-    import subprocess32 as subprocess
-
-    from subprocess32 import CalledProcessError
-
-
-if PY34:
-    # subprocess32 pass the calls directly to subprocess
-    # on Python 3.3+ but Python 3.4 does not provide run()
-    # so we backport it
-    import signal
-
-    from subprocess import PIPE
-    from subprocess import Popen
-    from subprocess import SubprocessError
-    from subprocess import TimeoutExpired
-
-    class CalledProcessError(SubprocessError):
-        """Raised when run() is called with check=True and the process
-        returns a non-zero exit status.
-
-        Attributes:
-          cmd, returncode, stdout, stderr, output
-        """
-
-        def __init__(self, returncode, cmd, output=None, stderr=None):
-            self.returncode = returncode
-            self.cmd = cmd
-            self.output = output
-            self.stderr = stderr
-
-        def __str__(self):
-            if self.returncode and self.returncode < 0:
-                try:
-                    return "Command '%s' died with %r." % (
-                        self.cmd,
-                        signal.Signals(-self.returncode),
-                    )
-                except ValueError:
-                    return "Command '%s' died with unknown signal %d." % (
-                        self.cmd,
-                        -self.returncode,
-                    )
-            else:
-                return "Command '%s' returned non-zero exit status %d." % (
-                    self.cmd,
-                    self.returncode,
-                )
-
-        @property
-        def stdout(self):
-            """Alias for output attribute, to match stderr"""
-            return self.output
-
-        @stdout.setter
-        def stdout(self, value):
-            # There's no obvious reason to set this, but allow it anyway so
-            # .stdout is a transparent alias for .output
-            self.output = value
-
-    class CompletedProcess(object):
-        """A process that has finished running.
-        This is returned by run().
-        Attributes:
-          args: The list or str args passed to run().
-          returncode: The exit code of the process, negative for signals.
-          stdout: The standard output (None if not captured).
-          stderr: The standard error (None if not captured).
-        """
-
-        def __init__(self, args, returncode, stdout=None, stderr=None):
-            self.args = args
-            self.returncode = returncode
-            self.stdout = stdout
-            self.stderr = stderr
-
-        def __repr__(self):
-            args = [
-                "args={!r}".format(self.args),
-                "returncode={!r}".format(self.returncode),
-            ]
-            if self.stdout is not None:
-                args.append("stdout={!r}".format(self.stdout))
-            if self.stderr is not None:
-                args.append("stderr={!r}".format(self.stderr))
-            return "{}({})".format(type(self).__name__, ", ".join(args))
-
-        def check_returncode(self):
-            """Raise CalledProcessError if the exit code is non-zero."""
-            if self.returncode:
-                raise CalledProcessError(
-                    self.returncode, self.args, self.stdout, self.stderr
-                )
-
-    def run(*popenargs, **kwargs):
-        """Run command with arguments and return a CompletedProcess instance.
-        The returned instance will have attributes args, returncode, stdout and
-        stderr. By default, stdout and stderr are not captured, and those attributes
-        will be None. Pass stdout=PIPE and/or stderr=PIPE in order to capture them.
-        If check is True and the exit code was non-zero, it raises a
-        CalledProcessError. The CalledProcessError object will have the return code
-        in the returncode attribute, and output & stderr attributes if those streams
-        were captured.
-        If timeout is given, and the process takes too long, a TimeoutExpired
-        exception will be raised.
-        There is an optional argument "input", allowing you to
-        pass a string to the subprocess's stdin.  If you use this argument
-        you may not also use the Popen constructor's "stdin" argument, as
-        it will be used internally.
-        The other arguments are the same as for the Popen constructor.
-        If universal_newlines=True is passed, the "input" argument must be a
-        string and stdout/stderr in the returned object will be strings rather than
-        bytes.
-        """
-        input = kwargs.pop("input", None)
-        timeout = kwargs.pop("timeout", None)
-        check = kwargs.pop("check", False)
-        if input is not None:
-            if "stdin" in kwargs:
-                raise ValueError("stdin and input arguments may not both be used.")
-            kwargs["stdin"] = PIPE
-
-        process = Popen(*popenargs, **kwargs)
-        try:
-            process.__enter__()  # No-Op really... illustrate "with in 2.4"
-            try:
-                stdout, stderr = process.communicate(input, timeout=timeout)
-            except TimeoutExpired:
-                process.kill()
-                stdout, stderr = process.communicate()
-                raise TimeoutExpired(
-                    process.args, timeout, output=stdout, stderr=stderr
-                )
-            except:
-                process.kill()
-                process.wait()
-                raise
-            retcode = process.poll()
-            if check and retcode:
-                raise CalledProcessError(
-                    retcode, process.args, output=stdout, stderr=stderr
-                )
-        finally:
-            # None because our context manager __exit__ does not use them.
-            process.__exit__(None, None, None)
-
-        return CompletedProcess(process.args, retcode, stdout, stderr)
-
-    subprocess.run = run
-    subprocess.CalledProcessError = CalledProcessError
-
 
 def decode(string, encodings=None):
-    if not PY2 and not isinstance(string, bytes):
-        return string
-
-    if PY2 and isinstance(string, unicode):
+    if not isinstance(string, bytes):
         return string
 
     encodings = encodings or ["utf-8", "latin1", "ascii"]
@@ -246,10 +26,7 @@ def decode(string, encodings=None):
 
 
 def encode(string, encodings=None):
-    if not PY2 and isinstance(string, bytes):
-        return string
-
-    if PY2 and isinstance(string, str):
+    if isinstance(string, bytes):
         return string
 
     encodings = encodings or ["utf-8", "latin1", "ascii"]
@@ -264,23 +41,7 @@ def encode(string, encodings=None):
 
 
 def to_str(string):
-    if isinstance(string, str) or not isinstance(string, (unicode, bytes)):
-        return string
-
-    if PY2:
-        method = "encode"
-    else:
-        method = "decode"
-
-    encodings = ["utf-8", "latin1", "ascii"]
-
-    for encoding in encodings:
-        try:
-            return getattr(string, method)(encoding)
-        except (UnicodeEncodeError, UnicodeDecodeError):
-            pass
-
-    return getattr(string, method)(encodings[0], errors="ignore")
+    return decode(string)
 
 
 def list_to_shell_command(cmd):
diff --git a/poetry/utils/env.py b/poetry/utils/env.py
index c247bf014f7..22db246911e 100644
--- a/poetry/utils/env.py
+++ b/poetry/utils/env.py
@@ -5,11 +5,14 @@
 import platform
 import re
 import shutil
+import subprocess
 import sys
 import sysconfig
 import textwrap
 
 from contextlib import contextmanager
+from pathlib import Path
+from subprocess import CalledProcessError
 from typing import Any
 from typing import Dict
 from typing import List
@@ -33,12 +36,9 @@
 from poetry.core.version.markers import BaseMarker
 from poetry.locations import CACHE_DIR
 from poetry.poetry import Poetry
-from poetry.utils._compat import CalledProcessError
-from poetry.utils._compat import Path
 from poetry.utils._compat import decode
 from poetry.utils._compat import encode
 from poetry.utils._compat import list_to_shell_command
-from poetry.utils._compat import subprocess
 from poetry.utils.helpers import is_dir_writable
 from poetry.utils.helpers import paths_csv
 
diff --git a/poetry/utils/exporter.py b/poetry/utils/exporter.py
index f7c40f6975f..f86fdcf19ee 100644
--- a/poetry/utils/exporter.py
+++ b/poetry/utils/exporter.py
@@ -1,3 +1,6 @@
+import urllib.parse
+
+from pathlib import Path
 from typing import Optional
 from typing import Sequence
 from typing import Union
@@ -5,9 +8,7 @@
 from clikit.api.io import IO
 
 from poetry.poetry import Poetry
-from poetry.utils._compat import Path
 from poetry.utils._compat import decode
-from poetry.utils._compat import urlparse
 
 
 class Exporter(object):
@@ -140,7 +141,7 @@ def _export_requirements_txt(
                 url = (
                     repository.authenticated_url if with_credentials else repository.url
                 )
-                parsed_url = urlparse.urlsplit(url)
+                parsed_url = urllib.parse.urlsplit(url)
                 if parsed_url.scheme == "http":
                     indexes_header += "--trusted-host {}\n".format(parsed_url.netloc)
                 indexes_header += "--extra-index-url {}\n".format(url)
diff --git a/poetry/utils/helpers.py b/poetry/utils/helpers.py
index 232e65b7d44..909ec3c1438 100644
--- a/poetry/utils/helpers.py
+++ b/poetry/utils/helpers.py
@@ -5,6 +5,7 @@
 import tempfile
 
 from contextlib import contextmanager
+from pathlib import Path
 from typing import List
 from typing import Optional
 
@@ -13,7 +14,6 @@
 from poetry.config.config import Config
 from poetry.core.packages.package import Package
 from poetry.core.version import Version
-from poetry.utils._compat import Path
 
 
 try:
diff --git a/poetry/utils/setup_reader.py b/poetry/utils/setup_reader.py
index 3a1ce2f170d..498210f45f5 100644
--- a/poetry/utils/setup_reader.py
+++ b/poetry/utils/setup_reader.py
@@ -1,5 +1,7 @@
 import ast
 
+from configparser import ConfigParser
+from pathlib import Path
 from typing import Any
 from typing import Dict
 from typing import Iterable
@@ -10,16 +12,6 @@
 
 from poetry.core.semver import Version
 
-from ._compat import PY35
-from ._compat import Path
-from ._compat import basestring
-
-
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
-
 
 class SetupReader(object):
     """
@@ -39,8 +31,8 @@ class SetupReader(object):
     @classmethod
     def read_from_directory(
         cls, directory
-    ):  # type: (Union[basestring, Path]) -> Dict[str, Union[List, Dict]]
-        if isinstance(directory, basestring):
+    ):  # type: (Union[str, Path]) -> Dict[str, Union[List, Dict]]
+        if isinstance(directory, str):
             directory = Path(directory)
 
         result = cls.DEFAULT.copy()
@@ -61,11 +53,8 @@ def read_from_directory(
 
     def read_setup_py(
         self, filepath
-    ):  # type: (Union[basestring, Path]) -> Dict[str, Union[List, Dict]]
-        if not PY35:
-            return self.DEFAULT
-
-        if isinstance(filepath, basestring):
+    ):  # type: (Union[str, Path]) -> Dict[str, Union[List, Dict]]
+        if isinstance(filepath, str):
             filepath = Path(filepath)
 
         with filepath.open(encoding="utf-8") as f:
@@ -92,7 +81,7 @@ def read_setup_py(
 
     def read_setup_cfg(
         self, filepath
-    ):  # type: (Union[basestring, Path]) -> Dict[str, Union[List, Dict]]
+    ):  # type: (Union[str, Path]) -> Dict[str, Union[List, Dict]]
         parser = ConfigParser()
 
         parser.read(str(filepath))
diff --git a/poetry/utils/shell.py b/poetry/utils/shell.py
index 2b2fe91f946..3c0e5fbe92c 100644
--- a/poetry/utils/shell.py
+++ b/poetry/utils/shell.py
@@ -2,6 +2,8 @@
 import signal
 import sys
 
+from pathlib import Path
+
 import pexpect
 
 from clikit.utils.terminal import Terminal
@@ -9,7 +11,6 @@
 from shellingham import detect_shell
 
 from ._compat import WINDOWS
-from ._compat import Path
 from .env import VirtualEnv
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 59c49f74cf7..412ce84c639 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,12 +22,12 @@ classifiers = [
 
 # Requirements
 [tool.poetry.dependencies]
-python = "~2.7 || ^3.5"
+python = "^3.6"
 
 poetry-core = "^1.0.0"
 cleo = "^0.8.1"
 clikit = "^0.6.2"
-crashtest = { version = "^0.3.0", python = "^3.6" }
+crashtest = "^0.3.0"
 requests = "^2.18"
 cachy = "^0.3.0"
 requests-toolbelt = "^0.9.1"
@@ -39,38 +39,20 @@ tomlkit = ">=0.7.0,<1.0.0"
 pexpect = "^4.7.0"
 packaging = "^20.4"
 virtualenv = { version = "^20.0.26" }
-
-# The typing module is not in the stdlib in Python 2.7
-typing = { version = "^3.6", python = "~2.7" }
-
-# Use pathlib2 for Python 2.7
-pathlib2 = { version = "^2.3", python = "~2.7" }
-# Use futures on Python 2.7
-futures = { version = "^3.3.0", python = "~2.7" }
-# Use glob2 for Python 2.7 and 3.4
-glob2 = { version = "^0.6", python = "~2.7" }
-# functools32 is needed for Python 2.7
-functools32 = { version = "^3.2.3", python = "~2.7" }
-keyring = [
-    { version = "^18.0.1", python = "~2.7" },
-    { version = "^20.0.1", python = "~3.5" },
-    { version = "^21.2.0", python = "^3.6" }
-]
-# Use subprocess32 for Python 2.7
-subprocess32 = { version = "^3.5", python = "~2.7" }
+keyring = "^21.2.0"
 importlib-metadata = {version = "^1.6.0", python = "<3.8"}
 
 [tool.poetry.dev-dependencies]
-pytest = [
-    {version = "^4.1", python = "<3.5"},
-    {version = "^5.4.3", python = ">=3.5"}
-]
+pytest = "^5.4.3"
 pytest-cov = "^2.5"
 pytest-mock = "^1.9"
 pre-commit = { version = "^2.6", python = "^3.6.1" }
 tox = "^3.0"
 pytest-sugar = "^0.9.2"
-httpretty = "^0.9.6"
+httpretty = "^1.0"
+zipp = { version = "^3.4", python = "<3.8"}
+# temporary workaround for https://github.com/python-poetry/poetry/issues/3404
+urllib3 = "1.25.10"
 
 [tool.poetry.scripts]
 poetry = "poetry.console:main"
diff --git a/tests/compat.py b/tests/compat.py
new file mode 100644
index 00000000000..13c5bb7da98
--- /dev/null
+++ b/tests/compat.py
@@ -0,0 +1,4 @@
+try:
+    import zipp
+except ImportError:
+    import zipfile as zipp  # noqa
diff --git a/tests/conftest.py b/tests/conftest.py
index 51128f764bb..178a4632b90 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -4,6 +4,7 @@
 import sys
 import tempfile
 
+from pathlib import Path
 from typing import Any
 from typing import Dict
 
@@ -21,7 +22,6 @@
 from poetry.layouts import layout
 from poetry.repositories import Pool
 from poetry.repositories import Repository
-from poetry.utils._compat import Path
 from poetry.utils.env import EnvManager
 from poetry.utils.env import SystemEnv
 from poetry.utils.env import VirtualEnv
@@ -184,7 +184,7 @@ def mocked_open(self, *args, **kwargs):
             return mocker.MagicMock()
         return original(self, *args, **kwargs)
 
-    mocker.patch("poetry.utils._compat.Path.open", mocked_open)
+    mocker.patch("pathlib.Path.open", mocked_open)
 
     yield files
 
diff --git a/tests/console/commands/env/conftest.py b/tests/console/commands/env/conftest.py
index 5fbddf1aa6f..22b12f0d44b 100644
--- a/tests/console/commands/env/conftest.py
+++ b/tests/console/commands/env/conftest.py
@@ -1,8 +1,9 @@
 import os
 
+from pathlib import Path
+
 import pytest
 
-from poetry.utils._compat import Path
 from poetry.utils.env import EnvManager
 
 
diff --git a/tests/console/commands/env/helpers.py b/tests/console/commands/env/helpers.py
index 1c7e64dc17e..0c65e4f14fb 100644
--- a/tests/console/commands/env/helpers.py
+++ b/tests/console/commands/env/helpers.py
@@ -1,8 +1,8 @@
+from pathlib import Path
 from typing import Optional
 from typing import Union
 
 from poetry.core.semver import Version
-from poetry.utils._compat import Path
 
 
 def build_venv(
diff --git a/tests/console/commands/env/test_info.py b/tests/console/commands/env/test_info.py
index 9d1a0c8426a..123835ba7b9 100644
--- a/tests/console/commands/env/test_info.py
+++ b/tests/console/commands/env/test_info.py
@@ -1,6 +1,7 @@
+from pathlib import Path
+
 import pytest
 
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 
 
diff --git a/tests/console/commands/env/test_remove.py b/tests/console/commands/env/test_remove.py
index 2b4f3ae775c..b95419bb6fb 100644
--- a/tests/console/commands/env/test_remove.py
+++ b/tests/console/commands/env/test_remove.py
@@ -13,7 +13,7 @@ def test_remove_by_python_version(
     mocker, tester, venvs_in_cache_dirs, venv_name, venv_cache
 ):
     check_output = mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
 
diff --git a/tests/console/commands/env/test_use.py b/tests/console/commands/env/test_use.py
index b3ea3458d06..4ec106b434e 100644
--- a/tests/console/commands/env/test_use.py
+++ b/tests/console/commands/env/test_use.py
@@ -1,11 +1,12 @@
 import os
 
+from pathlib import Path
+
 import pytest
 import tomlkit
 
 from poetry.core.semver import Version
 from poetry.core.toml.file import TOMLFile
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from tests.console.commands.env.helpers import build_venv
 from tests.console.commands.env.helpers import check_output_wrapper
@@ -21,11 +22,11 @@ def setup(mocker):
 @pytest.fixture(autouse=True)
 def mock_subprocess_calls(setup, current_python, mocker):
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version(*current_python)),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[("/prefix", None), ("/prefix", None), ("/prefix", None)],
     )
 
@@ -39,8 +40,7 @@ def test_activate_activates_non_existing_virtualenv_no_envs_file(
     mocker, tester, venv_cache, venv_name, venvs_in_cache_config
 ):
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
 
     mock_build_env = mocker.patch(
diff --git a/tests/console/commands/self/test_update.py b/tests/console/commands/self/test_update.py
index 6e094111ad0..1598f47865a 100644
--- a/tests/console/commands/self/test_update.py
+++ b/tests/console/commands/self/test_update.py
@@ -1,12 +1,13 @@
 import os
 
+from pathlib import Path
+
 import pytest
 
 from poetry.__version__ import __version__
 from poetry.core.packages.package import Package
 from poetry.core.semver.version import Version
 from poetry.utils._compat import WINDOWS
-from poetry.utils._compat import Path
 
 
 FIXTURES = Path(__file__).parent.joinpath("fixtures")
diff --git a/tests/console/commands/test_add.py b/tests/console/commands/test_add.py
index 19998592ac3..a0811c1c965 100644
--- a/tests/console/commands/test_add.py
+++ b/tests/console/commands/test_add.py
@@ -3,11 +3,12 @@
 
 import sys
 
+from pathlib import Path
+
 import pytest
 
 from poetry.core.semver import Version
 from poetry.repositories.legacy_repository import LegacyRepository
-from poetry.utils._compat import Path
 from tests.helpers import get_dependency
 from tests.helpers import get_package
 
@@ -279,7 +280,7 @@ def test_add_git_ssh_constraint(app, repo, tester, tmp_venv):
 
 
 def test_add_directory_constraint(app, repo, tester, mocker):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__).parent
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -313,7 +314,7 @@ def test_add_directory_constraint(app, repo, tester, mocker):
 
 
 def test_add_directory_with_poetry(app, repo, tester, mocker):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -341,7 +342,7 @@ def test_add_directory_with_poetry(app, repo, tester, mocker):
 
 
 def test_add_file_constraint_wheel(app, repo, tester, mocker, poetry):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = poetry.file.parent
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -376,7 +377,7 @@ def test_add_file_constraint_wheel(app, repo, tester, mocker, poetry):
 
 
 def test_add_file_constraint_sdist(app, repo, tester, mocker):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -448,7 +449,7 @@ def test_add_constraint_with_extras_option(app, repo, tester):
 
 
 def test_add_url_constraint_wheel(app, repo, tester, mocker):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -1069,7 +1070,7 @@ def test_add_git_ssh_constraint_old_installer(app, repo, installer, old_tester):
 def test_add_directory_constraint_old_installer(
     app, repo, installer, mocker, old_tester
 ):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -1106,7 +1107,7 @@ def test_add_directory_constraint_old_installer(
 def test_add_directory_with_poetry_old_installer(
     app, repo, installer, mocker, old_tester
 ):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -1137,7 +1138,7 @@ def test_add_directory_with_poetry_old_installer(
 def test_add_file_constraint_wheel_old_installer(
     app, repo, installer, mocker, old_tester
 ):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -1175,7 +1176,7 @@ def test_add_file_constraint_wheel_old_installer(
 def test_add_file_constraint_sdist_old_installer(
     app, repo, installer, mocker, old_tester
 ):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
@@ -1253,7 +1254,7 @@ def test_add_constraint_with_extras_option_old_installer(
 def test_add_url_constraint_wheel_old_installer(
     app, repo, installer, mocker, old_tester
 ):
-    p = mocker.patch("poetry.utils._compat.Path.cwd")
+    p = mocker.patch("pathlib.Path.cwd")
     p.return_value = Path(__file__) / ".."
 
     repo.add_package(get_package("pendulum", "1.4.4"))
diff --git a/tests/console/commands/test_cache.py b/tests/console/commands/test_cache.py
index a8d47842d1e..f33fa9ad31a 100644
--- a/tests/console/commands/test_cache.py
+++ b/tests/console/commands/test_cache.py
@@ -5,9 +5,9 @@
 
 @pytest.fixture
 def repository_cache_dir(monkeypatch, tmpdir):
-    import poetry.locations
+    from pathlib import Path
 
-    from poetry.utils._compat import Path
+    import poetry.locations
 
     path = Path(str(tmpdir))
     monkeypatch.setattr(poetry.locations, "REPOSITORY_CACHE_DIR", path)
diff --git a/tests/console/commands/test_check.py b/tests/console/commands/test_check.py
index caa5485154f..90225bd6857 100644
--- a/tests/console/commands/test_check.py
+++ b/tests/console/commands/test_check.py
@@ -1,7 +1,6 @@
-import pytest
+from pathlib import Path
 
-from poetry.utils._compat import PY2
-from poetry.utils._compat import Path
+import pytest
 
 
 @pytest.fixture()
@@ -30,14 +29,7 @@ def test_check_invalid(mocker, tester):
 
     tester.execute()
 
-    if PY2:
-        expected = """\
-Error: u'description' is a required property
-Warning: A wildcard Python dependency is ambiguous. Consider specifying a more explicit one.
-Warning: The "pendulum" dependency specifies the "allows-prereleases" property, which is deprecated. Use "allow-prereleases" instead.
-"""
-    else:
-        expected = """\
+    expected = """\
 Error: 'description' is a required property
 Warning: A wildcard Python dependency is ambiguous. Consider specifying a more explicit one.
 Warning: The "pendulum" dependency specifies the "allows-prereleases" property, which is deprecated. Use "allow-prereleases" instead.
diff --git a/tests/console/commands/test_config.py b/tests/console/commands/test_config.py
index 58bc8662bf5..ad20da54d39 100644
--- a/tests/console/commands/test_config.py
+++ b/tests/console/commands/test_config.py
@@ -6,8 +6,6 @@
 from poetry.config.config_source import ConfigSource
 from poetry.core.pyproject import PyProjectException
 from poetry.factory import Factory
-from poetry.utils._compat import PY2
-from poetry.utils._compat import WINDOWS
 
 
 @pytest.fixture()
@@ -136,15 +134,13 @@ def test_set_cert(tester, auth_config_source, mocker):
 
 
 def test_config_installer_parallel(tester, command_tester_factory):
-    serial_enforced = PY2 and WINDOWS
-
     tester.execute("--local installer.parallel")
     assert tester.io.fetch_output().strip() == "true"
 
     workers = command_tester_factory(
         "install"
     )._command._installer._executor._max_workers
-    assert workers > 1 or (serial_enforced and workers == 1)
+    assert workers > 1
 
     tester.io.clear_output()
     tester.execute("--local installer.parallel false")
diff --git a/tests/console/commands/test_init.py b/tests/console/commands/test_init.py
index 7a9212ab262..812cc23ab96 100644
--- a/tests/console/commands/test_init.py
+++ b/tests/console/commands/test_init.py
@@ -2,12 +2,13 @@
 import shutil
 import sys
 
+from pathlib import Path
+
 import pytest
 
 from cleo import CommandTester
 
 from poetry.repositories import Pool
-from poetry.utils._compat import Path
 from poetry.utils._compat import decode
 from tests.helpers import TestApplication
 from tests.helpers import get_package
@@ -26,7 +27,7 @@ def source_dir(tmp_path):  # type: (...) -> Path
 
 @pytest.fixture
 def patches(mocker, source_dir, repo):
-    mocker.patch("poetry.utils._compat.Path.cwd", return_value=source_dir)
+    mocker.patch("pathlib.Path.cwd", return_value=source_dir)
     mocker.patch(
         "poetry.console.commands.init.InitCommand._get_pool", return_value=Pool([repo])
     )
diff --git a/tests/console/commands/test_lock.py b/tests/console/commands/test_lock.py
index c05ba257882..51e56d155ca 100644
--- a/tests/console/commands/test_lock.py
+++ b/tests/console/commands/test_lock.py
@@ -1,7 +1,8 @@
+from pathlib import Path
+
 import pytest
 
 from poetry.packages import Locker
-from poetry.utils._compat import Path
 from tests.helpers import get_package
 
 
diff --git a/tests/console/commands/test_publish.py b/tests/console/commands/test_publish.py
index dccc43ee87d..bcbf4c50006 100644
--- a/tests/console/commands/test_publish.py
+++ b/tests/console/commands/test_publish.py
@@ -1,14 +1,10 @@
-import pytest
+from pathlib import Path
+
 import requests
 
 from poetry.publishing.uploader import UploadError
-from poetry.utils._compat import PY36
-from poetry.utils._compat import Path
 
 
-@pytest.mark.skipif(
-    not PY36, reason="Improved error rendering is only available on Python >=3.6"
-)
 def test_publish_returns_non_zero_code_for_upload_errors(app, app_tester, http):
     http.register_uri(
         http.POST, "https://upload.pypi.org/legacy/", status=400, body="Bad Request"
@@ -47,32 +43,6 @@ def request_callback(*_, **__):
     assert expected in app_tester.io.fetch_output()
 
 
-@pytest.mark.skipif(
-    PY36, reason="Improved error rendering is not available on Python <3.6"
-)
-def test_publish_returns_non_zero_code_for_upload_errors_older_python(
-    app, app_tester, http
-):
-    http.register_uri(
-        http.POST, "https://upload.pypi.org/legacy/", status=400, body="Bad Request"
-    )
-
-    exit_code = app_tester.execute("publish --username foo --password bar")
-
-    assert 1 == exit_code
-
-    expected = """
-Publishing simple-project (1.2.3) to PyPI
-
-
-UploadError
-
-HTTP Error 400: Bad Request
-"""
-
-    assert app_tester.io.fetch_output() == expected
-
-
 def test_publish_with_cert(app_tester, mocker):
     publisher_publish = mocker.patch("poetry.publishing.Publisher.publish")
 
diff --git a/tests/console/commands/test_search.py b/tests/console/commands/test_search.py
index 9b61476c0b5..18e094ff1ae 100644
--- a/tests/console/commands/test_search.py
+++ b/tests/console/commands/test_search.py
@@ -1,6 +1,6 @@
-import pytest
+from pathlib import Path
 
-from poetry.utils._compat import Path
+import pytest
 
 
 TESTS_DIRECTORY = Path(__file__).parent.parent.parent
diff --git a/tests/console/conftest.py b/tests/console/conftest.py
index 6d7ef0fa675..a9b06f6c3b2 100644
--- a/tests/console/conftest.py
+++ b/tests/console/conftest.py
@@ -1,5 +1,7 @@
 import os
 
+from pathlib import Path
+
 import pytest
 
 from cleo import ApplicationTester
@@ -8,7 +10,6 @@
 from poetry.installation.noop_installer import NoopInstaller
 from poetry.io.null_io import NullIO
 from poetry.repositories import Pool
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from tests.helpers import TestApplication
 from tests.helpers import TestExecutor
diff --git a/tests/helpers.py b/tests/helpers.py
index f380bb8de16..8fc2a381c0f 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -1,5 +1,8 @@
 import os
 import shutil
+import urllib.parse
+
+from pathlib import Path
 
 from poetry.console import Application
 from poetry.core.masonry.utils.helpers import escape_name
@@ -14,10 +17,7 @@
 from poetry.packages import Locker
 from poetry.repositories import Repository
 from poetry.repositories.exceptions import PackageNotFound
-from poetry.utils._compat import PY2
 from poetry.utils._compat import WINDOWS
-from poetry.utils._compat import Path
-from poetry.utils._compat import urlparse
 
 
 FIXTURE_PATH = Path(__file__).parent / "fixtures"
@@ -59,19 +59,13 @@ def copy_or_symlink(source, dest):
     # os.symlink requires either administrative privileges or developer mode on Win10,
     # throwing an OSError if neither is active.
     if WINDOWS:
-        if PY2:
+        try:
+            os.symlink(str(source), str(dest), target_is_directory=source.is_dir())
+        except OSError:
             if source.is_dir():
                 shutil.copytree(str(source), str(dest))
             else:
                 shutil.copyfile(str(source), str(dest))
-        else:
-            try:
-                os.symlink(str(source), str(dest), target_is_directory=source.is_dir())
-            except OSError:
-                if source.is_dir():
-                    shutil.copytree(str(source), str(dest))
-                else:
-                    shutil.copyfile(str(source), str(dest))
     else:
         os.symlink(str(source), str(dest))
 
@@ -92,7 +86,7 @@ def mock_clone(_, source, dest):
 
 
 def mock_download(url, dest, **__):
-    parts = urlparse.urlparse(url)
+    parts = urllib.parse.urlparse(url)
 
     fixtures = Path(__file__).parent / "fixtures"
     fixture = fixtures / parts.path.lstrip("/")
diff --git a/tests/inspection/test_info.py b/tests/inspection/test_info.py
index a128469a23f..e04bd52a5c3 100644
--- a/tests/inspection/test_info.py
+++ b/tests/inspection/test_info.py
@@ -1,12 +1,11 @@
+from pathlib import Path
+from subprocess import CalledProcessError
 from typing import Set
 
 import pytest
 
 from poetry.inspection.info import PackageInfo
 from poetry.inspection.info import PackageInfoError
-from poetry.utils._compat import PY35
-from poetry.utils._compat import CalledProcessError
-from poetry.utils._compat import Path
 from poetry.utils._compat import decode
 from poetry.utils.env import EnvCommandError
 from poetry.utils.env import VirtualEnv
@@ -134,13 +133,11 @@ def test_info_from_requires_txt():
     demo_check_info(info)
 
 
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.py is skipped for Python < 3.5")
 def test_info_from_setup_py(demo_setup):
     info = PackageInfo.from_setup_files(demo_setup)
     demo_check_info(info, requires_dist={"package"})
 
 
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.cfg is skipped for Python < 3.5")
 def test_info_from_setup_cfg(demo_setup_cfg):
     info = PackageInfo.from_setup_files(demo_setup_cfg)
     demo_check_info(info, requires_dist={"package"})
@@ -155,7 +152,6 @@ def test_info_no_setup_pkg_info_no_deps():
     assert info.requires_dist is None
 
 
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.py is skipped for Python < 3.5")
 def test_info_setup_simple(mocker, demo_setup):
     spy = mocker.spy(VirtualEnv, "run")
     info = PackageInfo.from_directory(demo_setup)
@@ -163,18 +159,6 @@ def test_info_setup_simple(mocker, demo_setup):
     demo_check_info(info, requires_dist={"package"})
 
 
-@pytest.mark.skipif(
-    PY35,
-    reason="For projects with setup.py using Python < 3.5 fallback to pep517 build",
-)
-def test_info_setup_simple_py2(mocker, demo_setup):
-    spy = mocker.spy(VirtualEnv, "run")
-    info = PackageInfo.from_directory(demo_setup)
-    assert spy.call_count == 2
-    demo_check_info(info, requires_dist={"package"})
-
-
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.cfg is skipped for Python < 3.5")
 def test_info_setup_cfg(mocker, demo_setup_cfg):
     spy = mocker.spy(VirtualEnv, "run")
     info = PackageInfo.from_directory(demo_setup_cfg)
@@ -203,7 +187,6 @@ def test_info_setup_complex_pep517_legacy(demo_setup_complex_pep517_legacy):
     demo_check_info(info, requires_dist={"package"})
 
 
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.py is skipped for Python < 3.5")
 def test_info_setup_complex_disable_build(mocker, demo_setup_complex):
     spy = mocker.spy(VirtualEnv, "run")
     info = PackageInfo.from_directory(demo_setup_complex, disable_build=True)
@@ -213,7 +196,6 @@ def test_info_setup_complex_disable_build(mocker, demo_setup_complex):
     assert info.requires_dist is None
 
 
-@pytest.mark.skipif(not PY35, reason="Parsing of setup.py is skipped for Python < 3.5")
 @pytest.mark.parametrize("missing", ["version", "name", "install_requires"])
 def test_info_setup_missing_mandatory_should_trigger_pep517(
     mocker, source_dir, missing
diff --git a/tests/installation/test_chef.py b/tests/installation/test_chef.py
index 4e59b608a24..d25f276748d 100644
--- a/tests/installation/test_chef.py
+++ b/tests/installation/test_chef.py
@@ -1,8 +1,9 @@
+from pathlib import Path
+
 from packaging.tags import Tag
 
 from poetry.core.packages.utils.link import Link
 from poetry.installation.chef import Chef
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 
 
diff --git a/tests/installation/test_chooser.py b/tests/installation/test_chooser.py
index cf3f931b942..75fd52c7926 100644
--- a/tests/installation/test_chooser.py
+++ b/tests/installation/test_chooser.py
@@ -1,5 +1,7 @@
 import re
 
+from pathlib import Path
+
 import pytest
 
 from packaging.tags import Tag
@@ -9,7 +11,6 @@
 from poetry.repositories.legacy_repository import LegacyRepository
 from poetry.repositories.pool import Pool
 from poetry.repositories.pypi_repository import PyPiRepository
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 
 
diff --git a/tests/installation/test_executor.py b/tests/installation/test_executor.py
index 53ad3677350..ddf6faa2d66 100644
--- a/tests/installation/test_executor.py
+++ b/tests/installation/test_executor.py
@@ -4,6 +4,8 @@
 import re
 import shutil
 
+from pathlib import Path
+
 import pytest
 
 from clikit.api.formatter.style import Style
@@ -16,8 +18,6 @@
 from poetry.installation.operations import Uninstall
 from poetry.installation.operations import Update
 from poetry.repositories.pool import Pool
-from poetry.utils._compat import PY36
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from tests.repositories.test_pypi_repository import MockRepository
 
@@ -155,9 +155,6 @@ def test_execute_shows_skipped_operations_if_verbose(
     assert 0 == len(env.executed)
 
 
-@pytest.mark.skipif(
-    not PY36, reason="Improved error rendering is only available on Python >=3.6"
-)
 def test_execute_should_show_errors(config, mocker, io, env):
     executor = Executor(env, pool, config, io)
     executor.verbose()
diff --git a/tests/installation/test_installer.py b/tests/installation/test_installer.py
index 106efde6e9c..2adcb13cd25 100644
--- a/tests/installation/test_installer.py
+++ b/tests/installation/test_installer.py
@@ -3,6 +3,8 @@
 import json
 import sys
 
+from pathlib import Path
+
 import pytest
 
 from clikit.io import NullIO
@@ -17,8 +19,6 @@
 from poetry.repositories import Pool
 from poetry.repositories import Repository
 from poetry.repositories.installed_repository import InstalledRepository
-from poetry.utils._compat import PY2
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from poetry.utils.env import NullEnv
 from tests.helpers import get_dependency
@@ -112,15 +112,6 @@ def _get_content_hash(self):
     def _write_lock_data(self, data):
         for package in data["package"]:
             python_versions = str(package["python-versions"])
-            if PY2:
-                python_versions = python_versions.decode()
-                if "requirements" in package:
-                    requirements = {}
-                    for key, value in package["requirements"].items():
-                        requirements[key.decode()] = value.decode()
-
-                    package["requirements"] = requirements
-
             package["python-versions"] = python_versions
 
         self._written_data = json.loads(json.dumps(data))
@@ -1583,7 +1574,7 @@ def test_installer_required_extras_should_not_be_removed_when_updating_single_de
     installer.whitelist(["pytest"])
     installer.run()
 
-    assert (6 if not PY2 else 7) == installer.executor.installations_count
+    assert 6 == installer.executor.installations_count
     assert 0 == installer.executor.updates_count
     assert 0 == installer.executor.removals_count
 
diff --git a/tests/installation/test_installer_old.py b/tests/installation/test_installer_old.py
index b92bdce460e..97c1b163636 100644
--- a/tests/installation/test_installer_old.py
+++ b/tests/installation/test_installer_old.py
@@ -2,6 +2,8 @@
 
 import sys
 
+from pathlib import Path
+
 import pytest
 
 from clikit.io import NullIO
@@ -15,8 +17,6 @@
 from poetry.repositories import Pool
 from poetry.repositories import Repository
 from poetry.repositories.installed_repository import InstalledRepository
-from poetry.utils._compat import PY2
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from poetry.utils.env import NullEnv
 from tests.helpers import get_dependency
@@ -74,15 +74,6 @@ def _get_content_hash(self):
     def _write_lock_data(self, data):
         for package in data["package"]:
             python_versions = str(package["python-versions"])
-            if PY2:
-                python_versions = python_versions.decode()
-                if "requirements" in package:
-                    requirements = {}
-                    for key, value in package["requirements"].items():
-                        requirements[key.decode()] = value.decode()
-
-                    package["requirements"] = requirements
-
             package["python-versions"] = python_versions
 
         self._written_data = data
@@ -1514,7 +1505,7 @@ def test_installer_required_extras_should_not_be_removed_when_updating_single_de
     installer.whitelist(["pytest"])
     installer.run()
 
-    assert len(installer.installer.installs) == 6 if not PY2 else 7
+    assert len(installer.installer.installs) == 6
     assert len(installer.installer.updates) == 0
     assert len(installer.installer.removals) == 0
 
diff --git a/tests/installation/test_pip_installer.py b/tests/installation/test_pip_installer.py
index d0e2e5a4dcd..64c64409051 100644
--- a/tests/installation/test_pip_installer.py
+++ b/tests/installation/test_pip_installer.py
@@ -1,5 +1,7 @@
 import shutil
 
+from pathlib import Path
+
 import pytest
 
 from poetry.core.packages.package import Package
@@ -7,7 +9,6 @@
 from poetry.io.null_io import NullIO
 from poetry.repositories.legacy_repository import LegacyRepository
 from poetry.repositories.pool import Pool
-from poetry.utils._compat import Path
 from poetry.utils.env import NullEnv
 
 
diff --git a/tests/masonry/builders/test_editable_builder.py b/tests/masonry/builders/test_editable_builder.py
index 3bf1e59c98e..5500bc49a4d 100644
--- a/tests/masonry/builders/test_editable_builder.py
+++ b/tests/masonry/builders/test_editable_builder.py
@@ -4,12 +4,13 @@
 import os
 import shutil
 
+from pathlib import Path
+
 import pytest
 
 from poetry.factory import Factory
 from poetry.io.null_io import NullIO
 from poetry.masonry.builders.editable import EditableBuilder
-from poetry.utils._compat import Path
 from poetry.utils.env import EnvManager
 from poetry.utils.env import MockEnv
 from poetry.utils.env import VirtualEnv
diff --git a/tests/mixology/solutions/providers/test_python_requirement_solution_provider.py b/tests/mixology/solutions/providers/test_python_requirement_solution_provider.py
index 81c11d215d3..14f1b3cb6e1 100644
--- a/tests/mixology/solutions/providers/test_python_requirement_solution_provider.py
+++ b/tests/mixology/solutions/providers/test_python_requirement_solution_provider.py
@@ -1,5 +1,3 @@
-import pytest
-
 from poetry.core.packages.dependency import Dependency
 from poetry.mixology.failure import SolveFailure
 from poetry.mixology.incompatibility import Incompatibility
@@ -7,12 +5,8 @@
 from poetry.mixology.incompatibility_cause import PythonCause
 from poetry.mixology.term import Term
 from poetry.puzzle.exceptions import SolverProblemError
-from poetry.utils._compat import PY36
 
 
-@pytest.mark.skipif(
-    not PY36, reason="Error solutions are only available for Python ^3.6"
-)
 def test_it_can_solve_python_incompatibility_solver_errors():
     from poetry.mixology.solutions.providers import PythonRequirementSolutionProvider
     from poetry.mixology.solutions.solutions import PythonRequirementSolution
@@ -27,9 +21,6 @@ def test_it_can_solve_python_incompatibility_solver_errors():
     assert isinstance(provider.get_solutions(exception)[0], PythonRequirementSolution)
 
 
-@pytest.mark.skipif(
-    not PY36, reason="Error solutions are only available for Python ^3.6"
-)
 def test_it_cannot_solve_other_solver_errors():
     from poetry.mixology.solutions.providers import PythonRequirementSolutionProvider
 
diff --git a/tests/mixology/solutions/solutions/test_python_requirement_solution.py b/tests/mixology/solutions/solutions/test_python_requirement_solution.py
index e264ad8d04b..8ea58a4078d 100644
--- a/tests/mixology/solutions/solutions/test_python_requirement_solution.py
+++ b/tests/mixology/solutions/solutions/test_python_requirement_solution.py
@@ -1,5 +1,3 @@
-import pytest
-
 from clikit.io.buffered_io import BufferedIO
 
 from poetry.core.packages.dependency import Dependency
@@ -8,12 +6,8 @@
 from poetry.mixology.incompatibility_cause import PythonCause
 from poetry.mixology.term import Term
 from poetry.puzzle.exceptions import SolverProblemError
-from poetry.utils._compat import PY36
 
 
-@pytest.mark.skipif(
-    not PY36, reason="Error solutions are only available for Python ^3.6"
-)
 def test_it_provides_the_correct_solution():
     from poetry.mixology.solutions.solutions import PythonRequirementSolution
 
diff --git a/tests/publishing/test_publisher.py b/tests/publishing/test_publisher.py
index ceb9e7d4da0..786d659b0db 100644
--- a/tests/publishing/test_publisher.py
+++ b/tests/publishing/test_publisher.py
@@ -1,5 +1,7 @@
 import os
 
+from pathlib import Path
+
 import pytest
 
 from cleo.io import BufferedIO
@@ -7,7 +9,6 @@
 from poetry.factory import Factory
 from poetry.io.null_io import NullIO
 from poetry.publishing.publisher import Publisher
-from poetry.utils._compat import Path
 
 
 def test_publish_publishes_to_pypi_by_default(fixture_dir, mocker, config):
diff --git a/tests/publishing/test_uploader.py b/tests/publishing/test_uploader.py
index 0b32e77d864..ae0eb041b7b 100644
--- a/tests/publishing/test_uploader.py
+++ b/tests/publishing/test_uploader.py
@@ -1,10 +1,11 @@
+from pathlib import Path
+
 import pytest
 
 from poetry.factory import Factory
 from poetry.io.null_io import NullIO
 from poetry.publishing.uploader import Uploader
 from poetry.publishing.uploader import UploadError
-from poetry.utils._compat import Path
 
 
 fixtures_dir = Path(__file__).parent.parent / "fixtures"
diff --git a/tests/puzzle/conftest.py b/tests/puzzle/conftest.py
index e3812530bf5..5848294b765 100644
--- a/tests/puzzle/conftest.py
+++ b/tests/puzzle/conftest.py
@@ -1,8 +1,8 @@
 import shutil
 
-import pytest
+from pathlib import Path
 
-from poetry.utils._compat import Path
+import pytest
 
 
 try:
diff --git a/tests/puzzle/test_provider.py b/tests/puzzle/test_provider.py
index ecab7f3ab2d..2d0c4557bdb 100644
--- a/tests/puzzle/test_provider.py
+++ b/tests/puzzle/test_provider.py
@@ -1,3 +1,4 @@
+from pathlib import Path
 from subprocess import CalledProcessError
 
 import pytest
@@ -12,8 +13,6 @@
 from poetry.puzzle.provider import Provider
 from poetry.repositories.pool import Pool
 from poetry.repositories.repository import Repository
-from poetry.utils._compat import PY35
-from poetry.utils._compat import Path
 from poetry.utils.env import EnvCommandError
 from poetry.utils.env import MockEnv as BaseMockEnv
 from tests.helpers import get_dependency
@@ -94,7 +93,6 @@ def test_search_for_vcs_setup_egg_info_with_extras(provider):
     }
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_search_for_vcs_read_setup(provider, mocker):
     mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
 
@@ -115,7 +113,6 @@ def test_search_for_vcs_read_setup(provider, mocker):
     }
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_search_for_vcs_read_setup_with_extras(provider, mocker):
     mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
 
@@ -241,7 +238,6 @@ def test_search_for_directory_setup_with_base(provider, directory):
     )
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_search_for_directory_setup_read_setup(provider, mocker):
     mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
 
@@ -270,7 +266,6 @@ def test_search_for_directory_setup_read_setup(provider, mocker):
     }
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_search_for_directory_setup_read_setup_with_extras(provider, mocker):
     mocker.patch("poetry.utils.env.EnvManager.get", return_value=MockEnv())
 
@@ -300,7 +295,6 @@ def test_search_for_directory_setup_read_setup_with_extras(provider, mocker):
     }
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_search_for_directory_setup_read_setup_with_no_dependencies(provider):
     dependency = DirectoryDependency(
         "demo",
diff --git a/tests/puzzle/test_solver.py b/tests/puzzle/test_solver.py
index 1393b13f1ef..6e2a53a5c22 100644
--- a/tests/puzzle/test_solver.py
+++ b/tests/puzzle/test_solver.py
@@ -1,3 +1,5 @@
+from pathlib import Path
+
 import pytest
 
 from clikit.io import NullIO
@@ -13,7 +15,6 @@
 from poetry.repositories.installed_repository import InstalledRepository
 from poetry.repositories.pool import Pool
 from poetry.repositories.repository import Repository
-from poetry.utils._compat import Path
 from poetry.utils.env import MockEnv
 from tests.helpers import get_dependency
 from tests.helpers import get_package
diff --git a/tests/repositories/test_installed_repository.py b/tests/repositories/test_installed_repository.py
index 3caa702a09c..5097d3bc4a0 100644
--- a/tests/repositories/test_installed_repository.py
+++ b/tests/repositories/test_installed_repository.py
@@ -1,3 +1,4 @@
+from pathlib import Path
 from typing import Optional
 
 import pytest
@@ -6,11 +7,9 @@
 
 from poetry.core.packages import Package
 from poetry.repositories.installed_repository import InstalledRepository
-from poetry.utils._compat import PY36
-from poetry.utils._compat import Path
 from poetry.utils._compat import metadata
-from poetry.utils._compat import zipp
 from poetry.utils.env import MockEnv as BaseMockEnv
+from tests.compat import zipp
 
 
 FIXTURES_DIR = Path(__file__).parent / "fixtures"
@@ -135,9 +134,6 @@ def test_load_platlib_package(repository):
     assert lib64.version.text == "2.3.4"
 
 
-@pytest.mark.skipif(
-    not PY36, reason="pathlib.resolve() does not support strict argument"
-)
 def test_load_editable_package(repository):
     # test editable package with text .pth file
     editable = get_package_from_repository("editable", repository)
diff --git a/tests/repositories/test_legacy_repository.py b/tests/repositories/test_legacy_repository.py
index 47ccc1052f9..1402f4799af 100644
--- a/tests/repositories/test_legacy_repository.py
+++ b/tests/repositories/test_legacy_repository.py
@@ -1,5 +1,7 @@
 import shutil
 
+from pathlib import Path
+
 import pytest
 
 from poetry.core.packages import Dependency
@@ -8,8 +10,6 @@
 from poetry.repositories.exceptions import RepositoryError
 from poetry.repositories.legacy_repository import LegacyRepository
 from poetry.repositories.legacy_repository import Page
-from poetry.utils._compat import PY35
-from poetry.utils._compat import Path
 
 
 try:
@@ -95,16 +95,6 @@ def test_get_package_information_fallback_read_setup():
         == "Jupyter metapackage. Install all the Jupyter components in one go."
     )
 
-    if PY35:
-        assert package.requires == [
-            Dependency("notebook", "*"),
-            Dependency("qtconsole", "*"),
-            Dependency("jupyter-console", "*"),
-            Dependency("nbconvert", "*"),
-            Dependency("ipykernel", "*"),
-            Dependency("ipywidgets", "*"),
-        ]
-
 
 def test_get_package_information_skips_dependencies_with_invalid_constraints():
     repo = MockRepository()
diff --git a/tests/repositories/test_pypi_repository.py b/tests/repositories/test_pypi_repository.py
index 55afdd39485..cdd8484cc34 100644
--- a/tests/repositories/test_pypi_repository.py
+++ b/tests/repositories/test_pypi_repository.py
@@ -2,6 +2,7 @@
 import shutil
 
 from io import BytesIO
+from pathlib import Path
 
 import pytest
 
@@ -11,8 +12,6 @@
 from poetry.core.packages import Dependency
 from poetry.factory import Factory
 from poetry.repositories.pypi_repository import PyPiRepository
-from poetry.utils._compat import PY35
-from poetry.utils._compat import Path
 from poetry.utils._compat import encode
 
 
@@ -136,7 +135,6 @@ def test_fallback_inspects_sdist_first_if_no_matching_wheels_can_be_found():
     assert dep.python_versions == "~2.7"
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_fallback_can_read_setup_to_get_dependencies():
     repo = MockRepository(fallback=True)
 
diff --git a/tests/test_factory.py b/tests/test_factory.py
index b2c232b20e7..d213d808405 100644
--- a/tests/test_factory.py
+++ b/tests/test_factory.py
@@ -2,14 +2,14 @@
 from __future__ import absolute_import
 from __future__ import unicode_literals
 
+from pathlib import Path
+
 import pytest
 
 from poetry.core.toml.file import TOMLFile
 from poetry.factory import Factory
 from poetry.repositories.legacy_repository import LegacyRepository
 from poetry.repositories.pypi_repository import PyPiRepository
-from poetry.utils._compat import PY2
-from poetry.utils._compat import Path
 
 
 fixtures_dir = Path(__file__).parent / "fixtures"
@@ -196,16 +196,10 @@ def test_validate_fails():
     content = complete.read()["tool"]["poetry"]
     content["this key is not in the schema"] = ""
 
-    if PY2:
-        expected = (
-            "Additional properties are not allowed "
-            "(u'this key is not in the schema' was unexpected)"
-        )
-    else:
-        expected = (
-            "Additional properties are not allowed "
-            "('this key is not in the schema' was unexpected)"
-        )
+    expected = (
+        "Additional properties are not allowed "
+        "('this key is not in the schema' was unexpected)"
+    )
 
     assert Factory.validate(content) == {"errors": [expected], "warnings": []}
 
@@ -216,13 +210,7 @@ def test_create_poetry_fails_on_invalid_configuration():
             Path(__file__).parent / "fixtures" / "invalid_pyproject" / "pyproject.toml"
         )
 
-    if PY2:
-        expected = """\
-The Poetry configuration is invalid:
-  - u'description' is a required property
-"""
-    else:
-        expected = """\
+    expected = """\
 The Poetry configuration is invalid:
   - 'description' is a required property
 """
diff --git a/tests/utils/test_env.py b/tests/utils/test_env.py
index 9c1e2c623d9..f0e2bd21a45 100644
--- a/tests/utils/test_env.py
+++ b/tests/utils/test_env.py
@@ -2,6 +2,7 @@
 import shutil
 import sys
 
+from pathlib import Path
 from typing import Optional
 from typing import Union
 
@@ -13,8 +14,6 @@
 from poetry.core.semver import Version
 from poetry.core.toml.file import TOMLFile
 from poetry.factory import Factory
-from poetry.utils._compat import PY2
-from poetry.utils._compat import Path
 from poetry.utils.env import GET_BASE_PREFIX
 from poetry.utils.env import EnvCommandError
 from poetry.utils.env import EnvManager
@@ -145,11 +144,10 @@ def test_activate_activates_non_existing_virtualenv_no_envs_file(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[("/prefix", None), ("/prefix", None)],
     )
     m = mocker.patch("poetry.utils.env.EnvManager.build_venv", side_effect=build_venv)
@@ -186,12 +184,10 @@ def test_activate_activates_existing_virtualenv_no_envs_file(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
-        side_effect=[("/prefix", None)],
+        "subprocess.Popen.communicate", side_effect=[("/prefix", None)],
     )
     m = mocker.patch("poetry.utils.env.EnvManager.build_venv", side_effect=build_venv)
 
@@ -227,12 +223,10 @@ def test_activate_activates_same_virtualenv_with_envs_file(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
-        side_effect=[("/prefix", None)],
+        "subprocess.Popen.communicate", side_effect=[("/prefix", None)],
     )
     m = mocker.patch("poetry.utils.env.EnvManager.create_venv")
 
@@ -266,11 +260,11 @@ def test_activate_activates_different_virtualenv_with_envs_file(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[("/prefix", None), ("/prefix", None), ("/prefix", None)],
     )
     m = mocker.patch("poetry.utils.env.EnvManager.build_venv", side_effect=build_venv)
@@ -309,11 +303,10 @@ def test_activate_activates_recreates_for_different_patch(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[
             ("/prefix", None),
             ('{"version_info": [3, 7, 0]}', None),
@@ -366,11 +359,11 @@ def test_activate_does_not_recreate_when_switching_minor(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[("/prefix", None), ("/prefix", None), ("/prefix", None)],
     )
     build_venv_m = mocker.patch(
@@ -411,8 +404,7 @@ def test_deactivate_non_activated_but_existing(
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
 
     manager.deactivate(NullIO())
@@ -450,8 +442,7 @@ def test_deactivate_activated(tmp_dir, manager, poetry, config, mocker):
     config.merge({"virtualenvs": {"path": str(tmp_dir)}})
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
 
     manager.deactivate(NullIO())
@@ -482,12 +473,10 @@ def test_get_prefers_explicitly_activated_virtualenvs_over_env_var(
     envs_file.write(doc)
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
-        side_effect=[("/prefix", None)],
+        "subprocess.Popen.communicate", side_effect=[("/prefix", None)],
     )
 
     env = manager.get()
@@ -518,7 +507,7 @@ def test_remove_by_python_version(tmp_dir, manager, poetry, config, mocker):
     (Path(tmp_dir) / "{}-py3.6".format(venv_name)).mkdir()
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
 
@@ -536,7 +525,7 @@ def test_remove_by_name(tmp_dir, manager, poetry, config, mocker):
     (Path(tmp_dir) / "{}-py3.6".format(venv_name)).mkdir()
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
 
@@ -554,7 +543,7 @@ def test_remove_also_deactivates(tmp_dir, manager, poetry, config, mocker):
     (Path(tmp_dir) / "{}-py3.6".format(venv_name)).mkdir()
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
 
@@ -591,7 +580,7 @@ def test_remove_keeps_dir_if_not_deleteable(tmp_dir, manager, poetry, config, mo
     file2_path.touch(exist_ok=False)
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.6")),
     )
 
@@ -619,9 +608,7 @@ def err_on_rm_venv_only(path, *args, **kwargs):
     m.side_effect = original_rmtree  # Avoid teardown using `err_on_rm_venv_only`
 
 
-@pytest.mark.skipif(
-    os.name == "nt" or PY2, reason="Symlinks are not support for Windows"
-)
+@pytest.mark.skipif(os.name == "nt", reason="Symlinks are not support for Windows")
 def test_env_has_symlinks_on_nix(tmp_dir, tmp_venv):
     assert os.path.islink(tmp_venv.python)
 
@@ -652,7 +639,7 @@ def test_create_venv_tries_to_find_a_compatible_python_executable_using_generic_
 
     mocker.patch("sys.version_info", (2, 7, 16))
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.7.5")),
     )
     m = mocker.patch(
@@ -678,9 +665,7 @@ def test_create_venv_tries_to_find_a_compatible_python_executable_using_specific
     venv_name = manager.generate_env_name("simple-project", str(poetry.file.parent))
 
     mocker.patch("sys.version_info", (2, 7, 16))
-    mocker.patch(
-        "poetry.utils._compat.subprocess.check_output", side_effect=["3.5.3", "3.9.0"]
-    )
+    mocker.patch("subprocess.check_output", side_effect=["3.5.3", "3.9.0"])
     m = mocker.patch(
         "poetry.utils.env.EnvManager.build_venv", side_effect=lambda *args, **kwargs: ""
     )
@@ -702,9 +687,7 @@ def test_create_venv_fails_if_no_compatible_python_version_could_be_found(
 
     poetry.package.python_versions = "^4.8"
 
-    mocker.patch(
-        "poetry.utils._compat.subprocess.check_output", side_effect=["", "", "", ""]
-    )
+    mocker.patch("subprocess.check_output", side_effect=["", "", "", ""])
     m = mocker.patch(
         "poetry.utils.env.EnvManager.build_venv", side_effect=lambda *args, **kwargs: ""
     )
@@ -730,7 +713,7 @@ def test_create_venv_does_not_try_to_find_compatible_versions_with_executable(
 
     poetry.package.python_versions = "^4.8"
 
-    mocker.patch("poetry.utils._compat.subprocess.check_output", side_effect=["3.8.0"])
+    mocker.patch("subprocess.check_output", side_effect=["3.8.0"])
     m = mocker.patch(
         "poetry.utils.env.EnvManager.build_venv", side_effect=lambda *args, **kwargs: ""
     )
@@ -762,7 +745,7 @@ def test_create_venv_uses_patch_version_to_detect_compatibility(
 
     mocker.patch("sys.version_info", (version.major, version.minor, version.patch + 1))
     check_output = mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(Version.parse("3.6.9")),
     )
     m = mocker.patch(
@@ -793,7 +776,7 @@ def test_create_venv_uses_patch_version_to_detect_compatibility_with_executable(
     venv_name = manager.generate_env_name("simple-project", str(poetry.file.parent))
 
     check_output = mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
+        "subprocess.check_output",
         side_effect=check_output_wrapper(
             Version.parse("{}.{}.0".format(version.major, version.minor - 1))
         ),
@@ -831,11 +814,10 @@ def test_activate_with_in_project_setting_does_not_fail_if_no_venvs_dir(
     )
 
     mocker.patch(
-        "poetry.utils._compat.subprocess.check_output",
-        side_effect=check_output_wrapper(),
+        "subprocess.check_output", side_effect=check_output_wrapper(),
     )
     mocker.patch(
-        "poetry.utils._compat.subprocess.Popen.communicate",
+        "subprocess.Popen.communicate",
         side_effect=[("/prefix", None), ("/prefix", None)],
     )
     m = mocker.patch("poetry.utils.env.EnvManager.build_venv")
diff --git a/tests/utils/test_env_site.py b/tests/utils/test_env_site.py
index f25e2142193..01abb113771 100644
--- a/tests/utils/test_env_site.py
+++ b/tests/utils/test_env_site.py
@@ -1,13 +1,14 @@
 import uuid
 
-from poetry.utils._compat import Path
+from pathlib import Path
+
 from poetry.utils._compat import decode
 from poetry.utils.env import SitePackages
 
 
 def test_env_site_simple(tmp_dir, mocker):
     # emulate permission error when creating directory
-    mocker.patch("poetry.utils._compat.Path.mkdir", side_effect=OSError())
+    mocker.patch("pathlib.Path.mkdir", side_effect=OSError())
     site_packages = SitePackages(Path("/non-existent"), fallbacks=[Path(tmp_dir)])
     candidates = site_packages.make_candidates(Path("hello.txt"), writable_only=True)
     hello = Path(tmp_dir) / "hello.txt"
diff --git a/tests/utils/test_exporter.py b/tests/utils/test_exporter.py
index 1e660ce69cd..f15e2dc53a3 100644
--- a/tests/utils/test_exporter.py
+++ b/tests/utils/test_exporter.py
@@ -1,5 +1,7 @@
 import sys
 
+from pathlib import Path
+
 import pytest
 
 from poetry.core.packages import dependency_from_pep_508
@@ -7,7 +9,6 @@
 from poetry.factory import Factory
 from poetry.packages import Locker as BaseLocker
 from poetry.repositories.legacy_repository import LegacyRepository
-from poetry.utils._compat import Path
 from poetry.utils.exporter import Exporter
 
 
@@ -42,9 +43,7 @@ def working_directory():
 
 @pytest.fixture(autouse=True)
 def mock_path_cwd(mocker, working_directory):
-    yield mocker.patch(
-        "poetry.core.utils._compat.Path.cwd", return_value=working_directory
-    )
+    yield mocker.patch("pathlib.Path.cwd", return_value=working_directory)
 
 
 @pytest.fixture()
diff --git a/tests/utils/test_helpers.py b/tests/utils/test_helpers.py
index 83bf2030780..fe105df6b74 100644
--- a/tests/utils/test_helpers.py
+++ b/tests/utils/test_helpers.py
@@ -1,5 +1,6 @@
+from pathlib import Path
+
 from poetry.core.utils.helpers import parse_requires
-from poetry.utils._compat import Path
 from poetry.utils.helpers import get_cert
 from poetry.utils.helpers import get_client_cert
 
diff --git a/tests/utils/test_setup_reader.py b/tests/utils/test_setup_reader.py
index 68fc005a496..ccde90ac253 100644
--- a/tests/utils/test_setup_reader.py
+++ b/tests/utils/test_setup_reader.py
@@ -3,7 +3,6 @@
 import pytest
 
 from poetry.core.semver.exceptions import ParseVersionError
-from poetry.utils._compat import PY35
 from poetry.utils.setup_reader import SetupReader
 
 
@@ -15,7 +14,6 @@ def _setup(name):
     return _setup
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_first_level_setup_call_with_direct_types(setup):
     result = SetupReader.read_from_directory(setup("flask"))
 
@@ -48,7 +46,6 @@ def test_setup_reader_read_first_level_setup_call_with_direct_types(setup):
     assert expected_python_requires == result["python_requires"]
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_first_level_setup_call_with_variables(setup):
     result = SetupReader.read_from_directory(setup("requests"))
 
@@ -74,7 +71,6 @@ def test_setup_reader_read_first_level_setup_call_with_variables(setup):
     assert expected_python_requires == result["python_requires"]
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_sub_level_setup_call_with_direct_types(setup):
     result = SetupReader.read_from_directory(setup("sqlalchemy"))
 
@@ -123,7 +119,6 @@ def test_setup_reader_read_setup_cfg_with_attr(setup):
         SetupReader.read_from_directory(setup("with-setup-cfg-attr"))
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_setup_kwargs(setup):
     result = SetupReader.read_from_directory(setup("pendulum"))
 
@@ -140,7 +135,6 @@ def test_setup_reader_read_setup_kwargs(setup):
     assert expected_python_requires == result["python_requires"]
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_setup_call_in_main(setup):
     result = SetupReader.read_from_directory(setup("pyyaml"))
 
@@ -157,7 +151,6 @@ def test_setup_reader_read_setup_call_in_main(setup):
     assert expected_python_requires == result["python_requires"]
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_read_extras_require_with_variables(setup):
     result = SetupReader.read_from_directory(setup("extras_require_with_vars"))
 
@@ -174,7 +167,6 @@ def test_setup_reader_read_extras_require_with_variables(setup):
     assert expected_python_requires == result["python_requires"]
 
 
-@pytest.mark.skipif(not PY35, reason="AST parsing does not work for Python <3.4")
 def test_setup_reader_setuptools(setup):
     result = SetupReader.read_from_directory(setup("setuptools_setup"))