Fixed #8149 -- Made File.__iter__() support universal newlines.

The following are recognized as ending a line: the Unix end-of-line
convention '\n', the Windows convention '\r\n', and the old
Macintosh convention '\r'.

http://www.python.org/dev/peps/pep-0278

Thanks tchaumeny for review.

docs/ref/files/file.txt

@@ -53,6 +53,15 @@ The ``File`` Class
 
         Iterate over the file yielding one line at a time.
 
+        .. versionchanged:: 1.8
+
+            ``File`` now uses `universal newlines`_. The following are
+            recognized as ending a line: the Unix end-of-line convention
+            ``'\n'``, the Windows convention ``'\r\n'``, and the old Macintosh
+            convention ``'\r'``.
+
+            .. _universal newlines: http://www.python.org/dev/peps/pep-0278
+
     .. method:: chunks([chunk_size=None])
 
         Iterate over the file yielding "chunks" of a given size. ``chunk_size``

docs/ref/files/uploads.txt

@@ -82,10 +82,15 @@ Here are some useful attributes of ``UploadedFile``:
         for line in uploadedfile:
             do_something_with(line)
 
-    However, *unlike* standard Python files, :class:`UploadedFile` only
-    understands ``\n`` (also known as "Unix-style") line endings. If you know
-    that you need to handle uploaded files with different line endings, you'll
-    need to do so in your view.
+    Lines are split using `universal newlines`_. The following are recognized
+    as ending a line: the Unix end-of-line convention ``'\n'``, the Windows
+    convention ``'\r\n'``, and the old Macintosh convention ``'\r'``.
+
+    .. _universal newlines: http://www.python.org/dev/peps/pep-0278
+
+    .. versionchanged:: 1.8
+
+        Previously lines were only split on the Unix end-of-line ``'\n'``.
 
 Subclasses of ``UploadedFile`` include:
 

docs/releases/1.8.txt

@@ -659,6 +659,13 @@ Miscellaneous
 * By default, :ref:`call_command <call-command>` now always skips the check
   framework (unless you pass it ``skip_checks=False``).
 
+* When iterating over lines, :class:`~django.core.files.File` now uses
+  `universal newlines`_. The following are recognized as ending a line: the
+  Unix end-of-line convention ``'\n'``, the Windows convention ``'\r\n'``, and
+  the old Macintosh convention ``'\r'``.
+
+  .. _universal newlines: http://www.python.org/dev/peps/pep-0278
+
 .. _deprecated-features-1.8:
 
 Features deprecated in 1.8