@@ -302,6 +302,7 @@ def _index_from_patch_format(cls, repo, stream):
         diff_header = cls.re_header.match
         for diff in ('\n' + text).split('\ndiff --git')[1:]:
             header = diff_header(diff)
+            assert header is not None, "Failed to parse diff header from " % diff
 
             a_path, b_path, similarity_index, rename_from, rename_to, \
                 old_mode, new_mode, new_file_mode, deleted_file_mode, \
 
@@ -404,7 +404,7 @@ def exists(self):
             self.config_reader.get('url')
             return True
         except cp.NoOptionError:
-            # we have the section at least ... 
+            # we have the section at least ...
             return True
         except cp.NoSectionError:
             return False
 
@@ -80,7 +80,7 @@ def test_diff_interface(self):
             for other in (None, commit.Index, commit.parents[0]):
                 for paths in (None, "CHANGES", ("CHANGES", "lib")):
                     for create_patch in range(2):
-                        diff_index = diff_item.diff(other, paths, create_patch)
+                        diff_index = diff_item.diff(other=other, paths=paths, create_patch=create_patch)
                         assert isinstance(diff_index, DiffIndex)
 
                         if diff_index:
 
@@ -97,8 +97,8 @@ def _stamp_version(filename):
         # "Development Status :: 1 - Planning",
         # "Development Status :: 2 - Pre-Alpha",
         # "Development Status :: 3 - Alpha",
-        "Development Status :: 4 - Beta",
-        # "Development Status :: 5 - Production/Stable",
+        # "Development Status :: 4 - Beta",
+        "Development Status :: 5 - Production/Stable",
         # "Development Status :: 6 - Mature",
         # "Development Status :: 7 - Inactive",
         "Environment :: Console",