Used https for most *.python.org links

docs/topics/db/queries.txt

@@ -405,7 +405,7 @@ translates (roughly) into the following SQL:
    arguments whose names and values are evaluated at runtime. For more
    information, see `Keyword Arguments`_ in the official Python tutorial.
 
-   .. _`Keyword Arguments`: http://docs.python.org/tutorial/controlflow.html#keyword-arguments
+   .. _`Keyword Arguments`: https://docs.python.org/tutorial/controlflow.html#keyword-arguments
 
 The field specified in a lookup has to be the name of a model field. There's
 one exception though, in case of a :class:`~django.db.models.ForeignKey` you

docs/topics/db/sql.txt

@@ -322,7 +322,7 @@ an unexpected behavior in magic method lookups (`Python ticket #9220`_).
 Django 1.7 explicitly added support to allow using a cursor as context
 manager.
 
-.. _`Python ticket #9220`: http://bugs.python.org/issue9220
+.. _`Python ticket #9220`: https://bugs.python.org/issue9220
 
 Using a cursor as a context manager::
 

docs/topics/db/transactions.txt

@@ -105,7 +105,7 @@ Django provides a single API to control database transactions.
     completes successfully, its effects can still be rolled back if an
     exception is raised in the outer block at a later point.
 
-    ``atomic`` is usable both as a `decorator`_::
+    ``atomic`` is usable both as a :py:term:`decorator`::
 
         from django.db import transaction
 
@@ -114,7 +114,7 @@ Django provides a single API to control database transactions.
             # This code executes inside a transaction.
             do_stuff()
 
-    and as a `context manager`_::
+    and as a :py:term:`context manager`::
 
         from django.db import transaction
 
@@ -126,9 +126,6 @@ Django provides a single API to control database transactions.
                 # This code executes inside a transaction.
                 do_more_stuff()
 
-    .. _decorator: http://docs.python.org/glossary.html#term-decorator
-    .. _context manager: http://docs.python.org/glossary.html#term-context-manager
-
     Wrapping ``atomic`` in a try/except block allows for natural handling of
     integrity errors::