Remove unsupported Python versions

There's really no need to support Python versions before Python 3. Also, Python 3.6 included a number of important features, e.g. improved type hints, ordered `dict`s and `dataclasses` via a backport. So not supporting 3.5 and earlier versions makes sense, too. Last but not least, I think it makes sense to only support CPython for now and worry about other implementations later. Adding and removing these versions is as easy as adding/removing them from "setup.cfg" and running `tox -e bootstrap` which should update ".travis.yml", ".appveyor.yml" and "tox.ini". The only thing which one might have to manually update is the metadata in "setup.py".
openego · Oct 15, 2020 · 11b0814 · 11b0814
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commit 11b0814
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Showing 5 changed files with 1 addition and 153 deletions.
diff --git a/.appveyor.yml b/.appveyor.yml
@@ -10,52 +10,6 @@ environment:
       PYTHON_HOME: C:\Python36
       PYTHON_VERSION: '3.6'
       PYTHON_ARCH: '32'
-    - TOXENV: py27-cover,codecov,coveralls
-      TOXPYTHON: C:\Python27\python.exe
-      PYTHON_HOME: C:\Python27
-      PYTHON_VERSION: '2.7'
-      PYTHON_ARCH: '32'
-    - TOXENV: py27-cover,codecov,coveralls
-      TOXPYTHON: C:\Python27-x64\python.exe
-      PYTHON_HOME: C:\Python27-x64
-      PYTHON_VERSION: '2.7'
-      PYTHON_ARCH: '64'
-      WINDOWS_SDK_VERSION: v7.0
-    - TOXENV: py27-nocov
-      TOXPYTHON: C:\Python27\python.exe
-      PYTHON_HOME: C:\Python27
-      PYTHON_VERSION: '2.7'
-      PYTHON_ARCH: '32'
-      WHEEL_PATH: .tox/dist
-    - TOXENV: py27-nocov
-      TOXPYTHON: C:\Python27-x64\python.exe
-      PYTHON_HOME: C:\Python27-x64
-      PYTHON_VERSION: '2.7'
-      PYTHON_ARCH: '64'
-      WHEEL_PATH: .tox/dist
-      WINDOWS_SDK_VERSION: v7.0
-    - TOXENV: py35-cover,codecov,coveralls
-      TOXPYTHON: C:\Python35\python.exe
-      PYTHON_HOME: C:\Python35
-      PYTHON_VERSION: '3.5'
-      PYTHON_ARCH: '32'
-    - TOXENV: py35-cover,codecov,coveralls
-      TOXPYTHON: C:\Python35-x64\python.exe
-      PYTHON_HOME: C:\Python35-x64
-      PYTHON_VERSION: '3.5'
-      PYTHON_ARCH: '64'
-    - TOXENV: py35-nocov
-      TOXPYTHON: C:\Python35\python.exe
-      PYTHON_HOME: C:\Python35
-      PYTHON_VERSION: '3.5'
-      PYTHON_ARCH: '32'
-      WHEEL_PATH: .tox/dist
-    - TOXENV: py35-nocov
-      TOXPYTHON: C:\Python35-x64\python.exe
-      PYTHON_HOME: C:\Python35-x64
-      PYTHON_VERSION: '3.5'
-      PYTHON_ARCH: '64'
-      WHEEL_PATH: .tox/dist
     - TOXENV: py36-cover,codecov,coveralls
       TOXPYTHON: C:\Python36\python.exe
       PYTHON_HOME: C:\Python36

diff --git a/.travis.yml b/.travis.yml
@@ -14,28 +14,6 @@ matrix:
     - python: '3.6'
       env:
         - TOXENV=docs
-    - os: osx
-      osx_image: xcode11
-      language: generic
-      env:
-        - TOXENV=py27-cover
-    - env:
-        - TOXENV=py27-cover,codecov,coveralls
-      python: '2.7'
-    - os: osx
-      osx_image: xcode11
-      language: generic
-      env:
-        - TOXENV=py27-nocov
-    - env:
-        - TOXENV=py27-nocov
-      python: '2.7'
-    - env:
-        - TOXENV=py35-cover,codecov,coveralls
-      python: '3.5'
-    - env:
-        - TOXENV=py35-nocov
-      python: '3.5'
     - env:
         - TOXENV=py36-cover,codecov,coveralls
       python: '3.6'
@@ -64,20 +42,6 @@ matrix:
     - env:
         - TOXENV=py38-nocov
       python: '3.8'
-    - env:
-        - TOXENV=pypy-cover,codecov,coveralls
-      python: 'pypy'
-    - env:
-        - TOXENV=pypy-nocov
-      python: 'pypy'
-    - env:
-        - TOXENV=pypy3-cover,codecov,coveralls
-        - TOXPYTHON=pypy3
-      python: 'pypy3'
-    - env:
-        - TOXENV=pypy3-nocov
-        - TOXPYTHON=pypy3
-      python: 'pypy3'
 before_install:
   - python --version
   - uname -a

diff --git a/setup.cfg b/setup.cfg
@@ -82,13 +82,9 @@ skip = .tox,.eggs,ci/templates,build,dist
 #  - can use as many you want
 
 python_versions =
-    py27
-    py35
     py36
     py37
     py38
-    pypy
-    pypy3
 
 dependencies =
 #    1.4: Django==1.4.16 !python_versions[py3*]

diff --git a/setup.py b/setup.py
@@ -63,15 +63,13 @@ def read(*names, **kwargs):
         "Operating System :: POSIX",
         "Operating System :: Microsoft :: Windows",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: Implementation :: CPython",
-        "Programming Language :: Python :: Implementation :: PyPy",
         # uncomment if you test on these interpreters:
+        # "Programming Language :: Python :: Implementation :: PyPy",
         # "Programming Language :: Python :: Implementation :: IronPython",
         # "Programming Language :: Python :: Implementation :: Jython",
         # "Programming Language :: Python :: Implementation :: Stackless",

diff --git a/tox.ini b/tox.ini
@@ -3,20 +3,12 @@ envlist =
     clean,
     check,
     docs,
-    py27-cover,
-    py27-nocov,
-    py35-cover,
-    py35-nocov,
     py36-cover,
     py36-nocov,
     py37-cover,
     py37-nocov,
     py38-cover,
     py38-nocov,
-    pypy-cover,
-    pypy-nocov,
-    pypy3-cover,
-    pypy3-nocov,
     report
 
 [testenv]
@@ -93,34 +85,6 @@ commands = coverage erase
 skip_install = true
 deps = coverage
 
-[testenv:py27-cover]
-basepython = {env:TOXPYTHON:python2.7}
-setenv =
-    {[testenv]setenv}
-usedevelop = true
-commands =
-    {posargs:pytest --cov --cov-report=term-missing -vv}
-deps =
-    {[testenv]deps}
-    pytest-cov
-
-[testenv:py27-nocov]
-basepython = {env:TOXPYTHON:python2.7}
-
-[testenv:py35-cover]
-basepython = {env:TOXPYTHON:python3.5}
-setenv =
-    {[testenv]setenv}
-usedevelop = true
-commands =
-    {posargs:pytest --cov --cov-report=term-missing -vv}
-deps =
-    {[testenv]deps}
-    pytest-cov
-
-[testenv:py35-nocov]
-basepython = {env:TOXPYTHON:python3.5}
-
 [testenv:py36-cover]
 basepython = {env:TOXPYTHON:python3.6}
 setenv =
@@ -162,31 +126,3 @@ deps =
 
 [testenv:py38-nocov]
 basepython = {env:TOXPYTHON:python3.8}
-
-[testenv:pypy-cover]
-basepython = {env:TOXPYTHON:pypy}
-setenv =
-    {[testenv]setenv}
-usedevelop = true
-commands =
-    {posargs:pytest --cov --cov-report=term-missing -vv}
-deps =
-    {[testenv]deps}
-    pytest-cov
-
-[testenv:pypy-nocov]
-basepython = {env:TOXPYTHON:pypy}
-
-[testenv:pypy3-cover]
-basepython = {env:TOXPYTHON:pypy3}
-setenv =
-    {[testenv]setenv}
-usedevelop = true
-commands =
-    {posargs:pytest --cov --cov-report=term-missing -vv}
-deps =
-    {[testenv]deps}
-    pytest-cov
-
-[testenv:pypy3-nocov]
-basepython = {env:TOXPYTHON:pypy3}