Clarify the test for #712 and add a changelog.

changelog.rst

@@ -22,6 +22,10 @@
   Reported in :issue:`704` by Shaun Crampton.
 - PyPy: Optimize the CFFI backend to use less memory (two pointers per
   watcher).
+- Python 3: The WSGI ``PATH_INFO`` entry is decoded from URL escapes
+  using latin-1, not UTF-8. This improves compliance with PEP 333 and
+  compatibility with some frameworks like Django. Fixed in :pr:`712`
+  by Ruben De Visscher.
 
 1.1rc2 (Dec 11, 2015)
 =====================

gevent/pywsgi.py

@@ -956,6 +956,8 @@ class WSGIHandler(object):
             path, query = self.path.split('?', 1)
         else:
             path, query = self.path, ''
+        # Note that self.path contains the original str object; if it contains
+        # encoded escapes, it will NOT match PATH_INFO.
         env['PATH_INFO'] = unquote_latin1(path)
         env['QUERY_STRING'] = query
 

greentest/test__pywsgi.py

@@ -728,10 +728,12 @@ class TestInternational(TestCase):
     validator = None  # wsgiref.validate.IteratorWrapper([]) does not have __len__
 
     def application(self, environ, start_response):
-        if not PY3:
-            self.assertEqual(environ['PATH_INFO'], '/\xd0\xbf\xd1\x80\xd0\xb8\xd0\xb2\xd0\xb5\xd1\x82')
-        else:
-            self.assertEqual(environ['PATH_INFO'], '/\u043f\u0440\u0438\u0432\u0435\u0442'.encode('utf-8').decode('latin-1'))
+        path_bytes = b'/\xd0\xbf\xd1\x80\xd0\xb8\xd0\xb2\xd0\xb5\xd1\x82'
+        if PY3:
+            # Under PY3, the escapes were decoded as latin-1
+            path_bytes = path_bytes.decode('latin-1')
+
+        self.assertEqual(environ['PATH_INFO'], path_bytes)
         self.assertEqual(environ['QUERY_STRING'], '%D0%B2%D0%BE%D0%BF%D1%80%D0%BE%D1%81=%D0%BE%D1%82%D0%B2%D0%B5%D1%82')
         start_response("200 PASSED", [('Content-Type', 'text/plain')])
         return []