Added Python 3.8 to setup.py and README

- added note about ending Python 2.7/3.4 support in the documentation

Author: mrbean-bremen

README.md

@@ -58,11 +58,12 @@ For example, pyfakefs will not work with [`lxml`](http://lxml.de/).  In this cas
 
 pyfakefs is currently automatically tested:
 * [![Build Status](https://travis-ci.org/jmcgeheeiv/pyfakefs.svg)](https://travis-ci.org/jmcgeheeiv/pyfakefs)
-  on Linux, with Python 2.7, and 3.4 to 3.7, using [Travis](https://travis-ci.org/jmcgeheeiv/pyfakefs)
+  on Linux, with Python 2.7, and 3.4 to 3.8, using [Travis](https://travis-ci.org/jmcgeheeiv/pyfakefs)
 * [![Build Status](https://travis-ci.org/jmcgeheeiv/pyfakefs.svg)](https://travis-ci.org/jmcgeheeiv/pyfakefs)
-  on MacOS, with Python 2.7, 3.6 and 3.7, using [Travis](https://travis-ci.org/jmcgeheeiv/pyfakefs)
+  on MacOS, with Python 2.7, 3.6 to 3.8, using [Travis](https://travis-ci.org/jmcgeheeiv/pyfakefs)
 * [![Build status](https://ci.appveyor.com/api/projects/status/4o8j21ufuo056873/branch/master?svg=true)](https://ci.appveyor.com/project/jmcgeheeiv/pyfakefs/branch/master)
-  on Windows, with Python 2.7, and 3.4 to 3.7 using [Appveyor](https://ci.appveyor.com/project/jmcgeheeiv/pyfakefs)
+  on Windows, with Python 2.7, and 3.4 to 3.8 using [Appveyor](https://ci
+  .appveyor.com/project/jmcgeheeiv/pyfakefs)
 
 ### Running pyfakefs unit tests
 

docs/intro.rst

@@ -6,7 +6,8 @@ Using pyfakefs, your tests operate on a fake file system in memory without touch
 The software under test requires no modification to work with pyfakefs.
 
 pyfakefs works with CPython 2.7, 3.4 and above, on Linux, Windows and OSX
-(MacOS), and with PyPy2 and PyPy3.
+(MacOS), and with PyPy2 and PyPy3. Note that this is the last major release
+that still supports Python 2.7/PyPy2 and Python 3.4.
 
 pyfakefs works with `PyTest <doc.pytest.org>`__ version 2.8.6 or above.
 

setup.py

@@ -43,6 +43,7 @@
     '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',
     'Operating System :: POSIX',

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist=py27,py33,py34,py35,py36,py37,pypy
+envlist=py27,py34,py35,py36,py37,py38,pypy
 
 [testenv]
 deps =