Merge pull request #1243 from locustio/Drop-support-for-pre-3.6-pytho…

…n-versions-(give-users-an-error-message-during-installation)

Drop support for pre 3.6 Python versions (give error during installation)

.travis.yml

@@ -8,10 +8,6 @@ matrix:
       env: TOXENV=py37
     - python: 3.6
       env: TOXENV=py36
-    - python: 3.5
-      env: TOXENV=py35
-    - python: 2.7
-      env: TOXENV=py27
     - stage: Verify Docker image builds
       script: docker build -t locustio/locust .
 addons:

docs/changelog.rst

@@ -7,6 +7,7 @@ For full details of the Locust changelog, please see https://github.com/locustio
 In development (master)
 =======================
 
+* Drop Python 2 and Python 3.5 support!
 * Continuously measure CPU usage and emit a warning if we get a five second average above 90%
 * Show CPU usage of slave nodes in the Web UI
 * Fixed issue when running Locust distributed and new slave nodes connected during the hatching/ramp-up 

docs/installation.rst

@@ -3,17 +3,10 @@ Installation
 
 Locust is available on `PyPI <https://pypi.org/project/locustio/>`_ and can be installed with `pip <https://pip.pypa.io/>`_.
 
-for Python 2.7:
 
 .. code-block:: console
 
-    $ pip install locustio
-
-for Python 3:
-
-.. code-block:: console
-
-    $ pip3 install locustio
+    $ pip3 install locust
 
 If you want the bleeding edge version, you can use pip to install directly from our Git repository.  For example, to install the master branch using Python 3:
 
@@ -34,7 +27,7 @@ To see available options, run:
 Supported Python Versions
 -------------------------
 
-Locust is supported on Python 2.7, 3.5, 3.6, 3.7 and 3.8.
+Locust is supported on Python 3.6, 3.7 and 3.8.
 
 
 Installing Locust on Windows

locust/__init__.py

@@ -2,4 +2,4 @@
 from .exception import InterruptTaskSet, ResponseError, RescheduleTaskImmediately
 from .wait_time import between, constant, constant_pacing
 
-__version__ = "0.13.5"
+__version__ = "0.14.0"

setup.py

@@ -2,9 +2,11 @@
 import ast
 import os
 import re
+import sys
 
 from setuptools import find_packages, setup
-
+from setuptools.command.develop import develop
+from setuptools.command.install import install
 
 # parse version from locust/__init__.py
 _version_re = re.compile(r'__version__\s+=\s+(.*)')
@@ -13,6 +15,18 @@
     version = str(ast.literal_eval(_version_re.search(
         f.read().decode('utf-8')).group(1)))
 
+class PostDevelopCommand(develop):
+    def run(self):
+        if sys.version_info[0] < 3 or sys.version_info[1] < 6:
+            sys.exit("Your Python version is no longer supported by Locust. Please upgrade Python to at least 3.6, or use a pinned old locust version (pip/pip3 install locustio==0.13.5)")
+        develop.run(self)
+
+class PostInstallCommand(install):
+    def run(self):
+        if sys.version_info[0] < 3 or sys.version_info[1] < 6:
+            sys.exit("Your Python version is no longer supported by Locust. Please upgrade Python to at least 3.6, or use a pinned old locust version (pip/pip3 install locustio==0.13.5)")
+        install.run(self)
+
 setup(
     name='locustio',
     version=version,
@@ -59,5 +73,9 @@
         'console_scripts': [
             'locust = locust.main:main',
         ]
+    },    
+    cmdclass={
+        'develop': PostDevelopCommand,
+        'install': PostInstallCommand,
     },
 )

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{27,35,36,37,38}
+envlist = py{36,37,38}
 
 [testenv]
 deps =