[3.1.x] Refs #31040 -- Doc'd Python 3.9 compatibility.

Backport of e18156b6c3 from master.

docs/faq/install.txt

@@ -53,8 +53,9 @@ Django version Python versions
 1.11           2.7, 3.4, 3.5, 3.6, 3.7 (added in 1.11.17)
 2.0            3.4, 3.5, 3.6, 3.7
 2.1            3.5, 3.6, 3.7
-2.2            3.5, 3.6, 3.7, 3.8 (added in 2.2.8)
+2.2            3.5, 3.6, 3.7, 3.8 (added in 2.2.8), 3.9 (added in 2.2.17)
-3.0, 3.1       3.6, 3.7, 3.8
+3.0            3.6, 3.7, 3.8, 3.9 (added in 3.0.11)
+3.1            3.6, 3.7, 3.8, 3.9 (added in 3.1.3)
 ============== ===============
 
 For each version of Python, only the latest micro release (A.B.C) is officially

docs/releases/2.2.17.txt

@@ -0,0 +1,7 @@
+===========================
+Django 2.2.17 release notes
+===========================
+
+*Expected November 2, 2020*
+
+Django 2.2.17 adds compatibility with Python 3.9.

docs/releases/2.2.txt

@@ -23,9 +23,9 @@ end in April 2020.
 Python compatibility
 ====================
 
-Django 2.2 supports Python 3.5, 3.6, 3.7, and 3.8 (as of 2.2.8). We
+Django 2.2 supports Python 3.5, 3.6, 3.7, 3.8 (as of 2.2.8), and 3.9 (as of
-**highly recommend** and only officially support the latest release of each
+2.2.17). We **highly recommend** and only officially support the latest release
-series.
+of each series.
 
 .. _whats-new-2.2:
 

docs/releases/3.0.11.txt

@@ -0,0 +1,7 @@
+===========================
+Django 3.0.11 release notes
+===========================
+
+*Expected November 2, 2020*
+
+Django 3.0.11 adds compatibility with Python 3.9.

docs/releases/3.0.txt

@@ -19,8 +19,8 @@ project.
 Python compatibility
 ====================
 
-Django 3.0 supports Python 3.6, 3.7, and 3.8. We **highly recommend** and only
+Django 3.0 supports Python 3.6, 3.7, 3.8, and 3.9 (as of 3.0.11). We **highly
-officially support the latest release of each series.
+recommend** and only officially support the latest release of each series.
 
 The Django 2.2.x series is the last to support Python 3.5.
 

docs/releases/3.1.3.txt

@@ -4,7 +4,8 @@ Django 3.1.3 release notes
 
 *Expected November 2, 2020*
 
-Django 3.1.3 fixes several bugs in 3.1.2.
+Django 3.1.3 fixes several bugs in 3.1.2 and adds compatibility with Python
+3.9.
 
 Bugfixes
 ========

docs/releases/3.1.txt

@@ -19,8 +19,8 @@ project.
 Python compatibility
 ====================
 
-Django 3.1 supports Python 3.6, 3.7, and 3.8. We **highly recommend** and only
+Django 3.1 supports Python 3.6, 3.7, 3.8, and 3.9 (as of 3.1.3). We **highly
-officially support the latest release of each series.
+recommend** and only officially support the latest release of each series.
 
 .. _whats-new-3.1:
 

docs/releases/index.txt

@@ -35,6 +35,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   3.0.11
    3.0.10
    3.0.9
    3.0.8
@@ -52,6 +53,7 @@ versions of the documentation contain the release notes for any later releases.
 .. toctree::
    :maxdepth: 1
 
+   2.2.17
    2.2.16
    2.2.15
    2.2.14

setup.cfg

@@ -20,6 +20,7 @@ classifiers =
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Topic :: Internet :: WWW/HTTP
     Topic :: Internet :: WWW/HTTP :: Dynamic Content
     Topic :: Internet :: WWW/HTTP :: WSGI

tox.ini

@@ -22,7 +22,7 @@ passenv = DJANGO_SETTINGS_MODULE PYTHONPATH HOME DISPLAY OBJC_DISABLE_INITIALIZE
 setenv =
     PYTHONDONTWRITEBYTECODE=1
 deps =
-    py{3,36,37,38}: -rtests/requirements/py3.txt
+    py{3,36,37,38,39}: -rtests/requirements/py3.txt
     postgres: -rtests/requirements/postgres.txt
     mysql: -rtests/requirements/mysql.txt
     oracle: -rtests/requirements/oracle.txt