Python 3.8 support (#241)

* Add Python 3.8 test environment

* Add Python 3.8 classifier

* Update max compatible version of six to 1.13.0

* Update max compatible version of six to 1.14.0

* Add record to the changelog

.travis.yml

@@ -31,6 +31,10 @@ matrix:
       env: TOXENV=py37
       sudo: required
       dist: xenial
+    - python: 3.8
+      env: TOXENV=py38
+      sudo: required
+      dist: xenial
     - python: pypy
       env: TOXENV=pypy
 notifications:

docs/main/changelog.rst

@@ -9,6 +9,9 @@ follows `Semantic versioning`_
 
 Development version
 -------------------
+- Add Python 3.8 support.
+- Add support of six 1.14.0.
+- Add support of six 1.13.0.
 - Regenerate C sources using Cython 0.29.14.
 - Fix PEP257 doc block errors in example modules.
 

requirements.txt

@@ -1 +1 @@
-six>=1.7.0,<=1.12.0
+six>=1.7.0,<=1.14.0

setup.py

@@ -84,6 +84,7 @@ setup(name='dependency-injector',
           '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',
           'Topic :: Software Development',

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist=
-    coveralls, pylint, flake8, pydocstyle, py26, py27, py33, py34, py35, py36, pypy, pypy3
+    coveralls, pylint, flake8, pydocstyle, py26, py27, py33, py34, py35, py36, py37, py38, pypy, pypy3
 
 [testenv]
 deps=