From b6022c7a80b90f9c3bae39a12efa8de7e6707b35 Mon Sep 17 00:00:00 2001
From: Dave Halter <davidhalter88@gmail.com>
Date: Tue, 11 Jul 2017 00:33:16 +0200
Subject: [PATCH] Add total_ordering for python 2.6.

---
 test/_compatibility.py               | 30 ++++++++++++++++++++++++++++
 test/test_normalizer_issues_files.py |  2 +-
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 test/_compatibility.py

diff --git a/test/_compatibility.py b/test/_compatibility.py
new file mode 100644
index 0000000..fe81076
--- /dev/null
+++ b/test/_compatibility.py
@@ -0,0 +1,30 @@
+try:
+    from functools import total_ordering
+except ImportError:
+    # Python 2.6
+    def total_ordering(cls):
+        """Class decorator that fills in missing ordering methods"""
+        convert = {
+            '__lt__': [('__gt__', lambda self, other: not (self < other or self == other)),
+                       ('__le__', lambda self, other: self < other or self == other),
+                       ('__ge__', lambda self, other: not self < other)],
+            '__le__': [('__ge__', lambda self, other: not self <= other or self == other),
+                       ('__lt__', lambda self, other: self <= other and not self == other),
+                       ('__gt__', lambda self, other: not self <= other)],
+            '__gt__': [('__lt__', lambda self, other: not (self > other or self == other)),
+                       ('__ge__', lambda self, other: self > other or self == other),
+                       ('__le__', lambda self, other: not self > other)],
+            '__ge__': [('__le__', lambda self, other: (not self >= other) or self == other),
+                       ('__gt__', lambda self, other: self >= other and not self == other),
+                       ('__lt__', lambda self, other: not self >= other)]
+        }
+        roots = set(dir(cls)) & set(convert)
+        if not roots:
+            raise ValueError('must define at least one ordering operation: < > <= >=')
+        root = max(roots)       # prefer __lt__ to __le__ to __gt__ to __ge__
+        for opname, opfunc in convert[root]:
+            if opname not in roots:
+                opfunc.__name__ = opname
+                opfunc.__doc__ = getattr(int, opname).__doc__
+                setattr(cls, opname, opfunc)
+        return cls
diff --git a/test/test_normalizer_issues_files.py b/test/test_normalizer_issues_files.py
index a06b86e..8519187 100644
--- a/test/test_normalizer_issues_files.py
+++ b/test/test_normalizer_issues_files.py
@@ -5,7 +5,7 @@ tests of pydocstyle.
 
 import difflib
 import re
-from functools import total_ordering
+from _compatibility import total_ordering
 
 import parso
 from parso.utils import source_to_unicode