Merge pull request pypa#7219 from hugovk/add-3.8

Declare support for Python 3.8

Author: chrahunt

docs/html/installing.rst

@@ -109,7 +109,7 @@ On Windows [4]_::
 Python and OS Compatibility
 ---------------------------
 
-pip works with CPython versions 2.7, 3.5, 3.6, 3.7 and also PyPy.
+pip works with CPython versions 2.7, 3.5, 3.6, 3.7, 3.8 and also PyPy.
 
 This means pip works on the latest patch version of each of these minor
 versions. Previous patch versions are supported on a best effort approach.

news/7219.feature

@@ -0,0 +1 @@
+Document Python 3.8 support.

setup.py

@@ -52,6 +52,7 @@ def find_version(*file_paths):
         "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",
     ],