[1.7.x] Updated doc links to point to Python 3 documentation

Backport of 680a0f08b from master.

docs/ref/applications.txt

@@ -209,8 +209,8 @@ Methods
 .. method:: AppConfig.get_model(model_name)
 
     Returns the :class:`~django.db.models.Model` with the given
-    ``model_name``. Raises :exc:`~exceptions.LookupError` if no such model
-    exists. ``model_name`` is case-insensitive.
+    ``model_name``. Raises :exc:`LookupError` if no such model exists.
+    ``model_name`` is case-insensitive.
 
 .. method:: AppConfig.ready()
 
@@ -284,8 +284,8 @@ Application registry
 .. method:: apps.get_app_config(app_label)
 
     Returns an :class:`~django.apps.AppConfig` for the application with the
-    given ``app_label``. Raises :exc:`~exceptions.LookupError` if no such
-    application exists.
+    given ``app_label``. Raises :exc:`LookupError` if no such application
+    exists.
 
 .. method:: apps.is_installed(app_name)
 
@@ -303,9 +303,9 @@ Application registry
     argument in the form ``app_label.model_name``. ``model_name`` is case-
     insensitive.
 
-    Raises :exc:`~exceptions.LookupError` if no such application or model
-    exists. Raises :exc:`~exceptions.ValueError` when called with a single
-    argument that doesn't contain exactly one dot.
+    Raises :exc:`LookupError` if no such application or model exists. Raises
+    :exc:`ValueError` when called with a single argument that doesn't contain
+    exactly one dot.
 
 .. _applications-troubleshooting:
 

docs/ref/contrib/auth.txt

@@ -290,8 +290,7 @@ Anonymous users
     * :meth:`~django.contrib.auth.models.User.set_password()`,
       :meth:`~django.contrib.auth.models.User.check_password()`,
       :meth:`~django.db.models.Model.save` and
-      :meth:`~django.db.models.Model.delete()` raise
-      :exc:`~exceptions.NotImplementedError`.
+      :meth:`~django.db.models.Model.delete()` raise :exc:`NotImplementedError`.
 
 In practice, you probably won't need to use
 :class:`~django.contrib.auth.models.AnonymousUser` objects on your own, but

docs/ref/contrib/sites.txt

@@ -478,7 +478,7 @@ method takes an :class:`~django.http.HttpRequest` object. It's able to deduce
 the ``domain`` and ``name`` by looking at the request's domain. It has
 ``save()`` and ``delete()`` methods to match the interface of
 :class:`~django.contrib.sites.models.Site`, but the methods raise
-:exc:`~exceptions.NotImplementedError`..
+:exc:`NotImplementedError`.
 
 ``get_current_site`` shortcut
 =============================

docs/ref/exceptions.txt

@@ -225,5 +225,4 @@ Python Exceptions
 =================
 
 Django raises built-in Python exceptions when appropriate as well. See the
-Python documentation for further information on the
-built-in :mod:`exceptions`.
+Python documentation for further information on the :ref:`bltin-exceptions`.

docs/ref/files/file.txt

@@ -11,8 +11,8 @@ The ``File`` Class
 
 .. class:: File(file_object)
 
-    The :class:`File` class is a thin wrapper around Python's :py:ref:`built-in
-    file object<bltin-file-objects>` with some Django-specific additions.
+    The :class:`File` class is a thin wrapper around a Python
+    :py:term:`file object` with some Django-specific additions.
     Internally, Django uses this class when it needs to represent a file.
 
     :class:`File` objects have the following attributes and methods:
@@ -28,8 +28,7 @@ The ``File`` Class
 
     .. attribute:: file
 
-        The underlying :py:ref:`built-in file object<bltin-file-objects>` that
-        this class wraps.
+        The underlying :py:term:`file object` that this class wraps.
 
     .. attribute:: mode
 

docs/ref/request-response.txt

@@ -666,8 +666,8 @@ Methods
 
 .. method:: HttpResponse.set_cookie(key, value='', max_age=None, expires=None, path='/', domain=None, secure=None, httponly=False)
 
-    Sets a cookie. The parameters are the same as in the :class:`Cookie.Morsel`
-    object in the Python standard library.
+    Sets a cookie. The parameters are the same as in the
+    :class:`~http.cookies.Morsel` cookie object in the Python standard library.
 
     * ``max_age`` should be a number of seconds, or ``None`` (default) if
       the cookie should last only as long as the client's browser session.
@@ -828,7 +828,7 @@ JsonResponse objects
    The ``safe`` boolean parameter defaults to ``True``. If it's set to ``False``,
    any object can be passed for serialization (otherwise only ``dict`` instances
    are allowed). If ``safe`` is ``True`` and a non-``dict`` object is passed as
-   the first argument, a :exc:`~exceptions.TypeError` will be raised.
+   the first argument, a :exc:`TypeError` will be raised.
 
 Usage
 -----
@@ -849,7 +849,7 @@ parameter to ``False``::
 
     >>> response = JsonResponse([1, 2, 3], safe=False)
 
-Without passing ``safe=False``, a :exc:`~exceptions.TypeError` will be raised.
+Without passing ``safe=False``, a :exc:`TypeError` will be raised.
 
 .. warning::
 

docs/ref/templates/builtins.txt

@@ -2532,7 +2532,7 @@ slightly different call:
     The :mod:`staticfiles<django.contrib.staticfiles>` contrib app also ships
     with a :ttag:`static template tag<staticfiles-static>` which uses
     ``staticfiles'`` :setting:`STATICFILES_STORAGE` to build the URL of the
-    given path (rather than simply using :func:`urlparse.urljoin` with the
+    given path (rather than simply using :func:`urllib.parse.urljoin` with the
     :setting:`STATIC_URL` setting and the given path). Use that instead if you
     have an advanced use case such as :ref:`using a cloud service to serve
     static files<staticfiles-from-cdn>`::

docs/ref/utils.txt

@@ -133,8 +133,8 @@ results. Instead do::
 
 The functions defined in this module share the following properties:
 
-- They raise :exc:`~exceptions.ValueError` if their input is well formatted but
-  isn't a valid date or time.
+- They raise :exc:`ValueError` if their input is well formatted but isn't a
+  valid date or time.
 - They return ``None`` if it isn't well formatted at all.
 - They accept up to picosecond resolution in input, but they truncate it to
   microseconds, since that's what Python supports.
@@ -692,7 +692,9 @@ escaping HTML.
 .. function:: int_to_base36(i)
 
     Converts a positive integer to a base 36 string. On Python 2 ``i`` must be
-    smaller than :data:`sys.maxint`.
+    smaller than `sys.maxint`_.
+
+    .. _sys.maxint: http://docs.python.org/2/library/sys.html#sys.maxint
 
 .. function:: urlsafe_base64_encode(s)
 

docs/ref/validators.txt

@@ -68,7 +68,7 @@ to, or in lieu of custom ``field.clean()`` methods.
     :param inverse_match: If not ``None``, overrides :attr:`inverse_match`.
     :param flags: If not ``None``, overrides :attr:`flags`. In that case,
         :attr:`regex` must be a regular expression string, or
-        :exc:`~exceptions.TypeError` is raised.
+        :exc:`TypeError` is raised.
 
     .. attribute:: regex
 
@@ -102,7 +102,7 @@ to, or in lieu of custom ``field.clean()`` methods.
 
         The flags used when compiling the regular expression string :attr:`regex`.
         If :attr:`regex` is a pre-compiled regular expression, and :attr:`flags` is overridden,
-        :exc:`~exceptions.TypeError` is raised.
+        :exc:`TypeError` is raised.
         Defaults to `0`.
 
 ``URLValidator``