Fix CI for python 3.6 (#541)

* Partially revert "Drop support for python 3.6"

bump version and add Python 3.9 trove classifier

* update locale

Author: ruro

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 7.0.0rc
+current_version = 6.1.1rc
 commit = True
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)((?P<release>.*))?
 serialize = 

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [3.6, 3.7, 3.8, 3.9]
 
     steps:
     - uses: actions/checkout@v2

docs/release_notes.rst

@@ -8,10 +8,6 @@ Release Notes
 Current Development Version
 ---------------------------
 
-Major Updates
-
-* Support for Python 3.6 has been dropped (#539).
-
 
 6.1.0 - May 17th, 2021
 ---------------------------

setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup
 
 # Do not update the version manually - it is managed by `bumpversion`.
-version = '7.0.0rc'
+version = '6.1.1rc'
 
 
 requirements = [
@@ -26,14 +26,15 @@
         'Environment :: Console',
         'Development Status :: 5 - Production/Stable',
         'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3 :: Only',
         'Operating System :: OS Independent',
         'License :: OSI Approved :: MIT License',
     ],
-    python_requires='>=3.7',
+    python_requires='>=3.6',
     keywords='pydocstyle, PEP 257, pep257, PEP 8, pep8, docstrings',
     packages=('pydocstyle',),
     package_dir={'': 'src'},

src/pydocstyle/utils.py

@@ -6,7 +6,7 @@
 from typing import Any, Iterable, Tuple
 
 # Do not update the version manually - it is managed by `bumpversion`.
-__version__ = '7.0.0rc'
+__version__ = '6.1.1rc'
 log = logging.getLogger(__name__)
 
 #: Regular expression for stripping non-alphanumeric characters

tox.ini

@@ -4,14 +4,15 @@
 # install tox" and then run "tox" from this directory.
 
 [tox]
-envlist = {py37,py38,py39}-{tests,install},docs,install,py37-docs
+envlist = {py36,py37,py38,py39}-{tests,install},docs,install,py36-docs
 
 [testenv]
 download = true
 # Make sure reading the UTF-8 from test.py works regardless of the locale used.
+# Note, that "en_US" is used here instead of "C" as "C" is not available on mac.
 setenv =
-    LC_ALL=C.UTF-8
-    LANG=C.UTF-8
+    LC_ALL=en_US.UTF-8
+    LANG=en_US.UTF-8
 # To pass arguments to py.test, use `tox [options] -- [pytest posargs]`.
 commands =
     py.test --pep8 --cache-clear -vv src/tests {posargs}
@@ -36,14 +37,18 @@ deps =
    -rrequirements/docs.txt
 commands = sphinx-build -b html . _build
 
-[testenv:py37-docs]
+[testenv:py36-docs]
 changedir = {[testenv:docs]changedir}
 deps = {[testenv:docs]deps}
 commands = {[testenv:docs]commands}
 
 # There's no way to generate sub-sections in tox.
 # The following sections are all references to the `py37-install`.
 
+[testenv:py36-install]
+skip_install = {[testenv:install]skip_install}
+commands = {[testenv:install]commands}
+
 [testenv:py37-install]
 skip_install = {[testenv:install]skip_install}
 commands = {[testenv:install]commands}