pythonPackages.sphinx: apply a patch to support py35

pkgs/development/python-modules/sphinx-1.3.1-pr-1946.patch

@@ -0,0 +1,35 @@
+From 7ce3b991229c74262f81ab7692a1dc6bde2416ee Mon Sep 17 00:00:00 2001
+From: Barry Warsaw <barry@python.org>
+Date: Thu, 25 Jun 2015 11:54:05 -0400
+Subject: [PATCH] One way to work around the lack of
+ html.parser.HTMLParserError in Python 3.5
+
+---
+ sphinx/builders/linkcheck.py | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/sphinx/builders/linkcheck.py b/sphinx/builders/linkcheck.py
+index 9f5c213..b05c5b2 100644
+--- a/sphinx/builders/linkcheck.py
++++ b/sphinx/builders/linkcheck.py
+@@ -19,9 +19,19 @@
+ from six.moves.urllib.request import build_opener, Request, HTTPRedirectHandler
+ from six.moves.urllib.parse import unquote, urlsplit, quote
+ from six.moves.urllib.error import HTTPError
+-from six.moves.html_parser import HTMLParser, HTMLParseError
++from six.moves.html_parser import HTMLParser
+ from docutils import nodes
+ 
++# 2015-06-25 barry@python.org.  This exception was deprecated in Python 3.3 and
++# removed in Python 3.5, however for backward compatibility reasons, we're not
++# going to just remove it.  If it doesn't exist, define an exception that will
++# never be caught but leaves the code in check_anchor() intact.
++try:
++    from six.moves.html_parser import HTMLParseError
++except ImportError:
++    class HTMLParseError(Exception):
++        pass
++
+ from sphinx.builders import Builder
+ from sphinx.util.console import purple, red, darkgreen, darkgray, \
+     darkred, turquoise

pkgs/top-level/python-packages.nix

@@ -16469,6 +16469,7 @@ let
       sha256 = "052i5c7cgvs5iv011dkq3r8d6jycg2gjjg3907ijsbdlq8q52vhs";
     };
 
+    patches = [ ../development/python-modules/sphinx-1.3.1-pr-1946.patch ];
     LC_ALL = "en_US.UTF-8";
     checkPhase = ''
       PYTHON=${python.executable} make test