[2.0.x] Fixed #29334 -- Updated pypi.python.org URLs to pypi.org.

Backport of 64b74804c5 from master

docs/ref/contrib/gis/geoip2.txt

@@ -18,7 +18,7 @@ Additionally, it is recommended to install the `libmaxminddb C library`__, so
 that ``geoip2`` can leverage the C library's faster speed.
 
 __ https://geoip2.readthedocs.io/
-__ https://pypi.python.org/pypi/geoip2
+__ https://pypi.org/project/geoip2/
 __ https://dev.maxmind.com/geoip/geoip2/geolite2/
 __ https://github.com/maxmind/libmaxminddb
 

docs/ref/databases.txt

@@ -343,7 +343,7 @@ MySQL has a couple drivers that implement the Python Database API described in
   require the MySQL client library or any Python modules outside the standard
   library.
 
-.. _mysqlclient: https://pypi.python.org/pypi/mysqlclient
+.. _mysqlclient: https://pypi.org/project/mysqlclient/
 .. _MySQL Connector/Python: https://dev.mysql.com/downloads/connector/python
 
 These drivers are thread-safe and provide connection pooling.
@@ -943,7 +943,7 @@ unofficial backends, along with any support queries, should be directed to
 the support channels provided by each 3rd party project.
 
 .. _SAP SQL Anywhere: https://github.com/sqlanywhere/sqlany-django
-.. _IBM DB2: https://pypi.python.org/pypi/ibm_db/
+.. _IBM DB2: https://pypi.org/project/ibm_db/
 .. _Microsoft SQL Server: https://django-mssql.readthedocs.io/en/latest/
 .. _Firebird: https://github.com/maxirobaina/django-firebird
 .. _ODBC: https://github.com/lionheart/django-pyodbc/

docs/ref/django-admin.txt

@@ -851,7 +851,7 @@ second). This offers better scaling to large projects, reduction in response
 time to code modification, more robust change detection, and battery usage
 reduction.
 
-.. _pyinotify: https://pypi.python.org/pypi/pyinotify/
+.. _pyinotify: https://pypi.org/project/pyinotify/
 
 When you start the server, and each time you change Python code while the
 server is running, the system check framework will check your entire Django

docs/ref/migration-operations.txt

@@ -279,7 +279,7 @@ be removed (elided) when :ref:`squashing migrations <migration-squashing>`.
     want the operation not to do anything in the given direction. This is
     especially useful in making the operation reversible.
 
-.. _sqlparse: https://pypi.python.org/pypi/sqlparse
+.. _sqlparse: https://pypi.org/project/sqlparse/
 
 ``RunPython``
 -------------

docs/ref/utils.txt

@@ -672,7 +672,7 @@ escaping HTML.
     the return value will be ``"Joel is a slug"``.
 
     If you are looking for a more robust solution, take a look at the `bleach
-    <https://pypi.python.org/pypi/bleach>`_ Python library.
+    <https://pypi.org/project/bleach/>`_ Python library.
 
 .. function:: html_safe()