Remove pew.lsenvs usage from project

pipenv/project.py

@@ -5,6 +5,7 @@
 import re
 import sys
 import base64
+import fnmatch
 import hashlib
 import contoml
 from first import first
@@ -33,6 +34,7 @@
  safe_expandvars,
  is_star,
  get_workon_home,
+ is_virtual_environment,
 )
 from .environments import (
  PIPENV_MAX_DEPTH,
@@ -273,21 +275,23 @@ def get_name(name, location):
  clean_name, encoded_hash = get_name(name, self.pipfile_location)
  venv_name = "{0}-{1}".format(clean_name, encoded_hash)
 
- # This should work most of the time, for non-WIndows, in-project venv,
- # or "proper" path casing (on Windows).
+ # This should work most of the time for
+ # Case-sensitive filesystems,
+ # In-project venv
+ # "Proper" path casing (on non-case-sensitive filesystems).
  if (
- os.name != "nt"
+ fnmatch.fnmatch('A', 'a')
  or self.is_venv_in_project()
  or self._get_virtualenv_location(venv_name)
  ):
  return clean_name, encoded_hash
 
  # Check for different capitalization of the same project.
- from .patched.pew.pew import lsenvs
-
- for env in lsenvs():
+ for path in get_workon_home().iterdir():
+ if not is_virtual_environment(path):
+  continue
  try:
- env_name, hash_ = env.rsplit("-", 1)
+ env_name, hash_ = path.name.rsplit("-", 1)
  except ValueError:
  continue
  if len(hash_) != 8 or env_name.lower() != name.lower():

pipenv/utils.py

@@ -1310,7 +1310,6 @@ def fs_str(string):
 _fs_encoding = sys.getfilesystemencoding() or sys.getdefaultencoding()
 
 
-# Duplicated from Pew to avoid importing it (performance considerations).
 def get_workon_home():
  from ._compat import Path
 
@@ -1323,3 +1322,19 @@ def get_workon_home():
  os.environ.get("XDG_DATA_HOME", "~/.local/share"), "virtualenvs"
  )
  return Path(os.path.expandvars(workon_home)).expanduser()
+
+
+def is_virtual_environment(path):
+ """Check if a given path is a virtual environment's root.
+
+ This is done by checking if the directory contains a Python executable in
+ its bin/Scripts directory. Not technically correct, but good enough for
+ general usage.
+ """
+ if not path.is_dir():
+ return False
+ for bindir_name in ('bin', 'Scripts'):
+ for python_like in path.joinpath(bindir_name).glob('python*'):
+ if python_like.is_file() and os.access(str(python_like), os.X_OK):
+ return True
+ return False

setup.cfg

@@ -11,4 +11,5 @@ ignore =
  # E231: missing whitespace after ','
  # E402: module level import not at top of file
  # E501: line too long
- E127,E128,E129,E222,E231,E402,E501
+ # W503: line break before binary operator
+ E127,E128,E129,E222,E231,E402,E501,W503