From 9d1dbca5e2f6f75577ad4ea29514a4eabc38e913 Mon Sep 17 00:00:00 2001
From: Walter Doerwald <walter@livinglogic.de>
Date: Mon, 2 Dec 2013 11:41:01 +0100
Subject: Fix issue #19834: Support unpickling of exceptions pickled by Python
 2.

---
 Lib/_compat_pickle.py | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'Lib/_compat_pickle.py')

diff --git a/Lib/_compat_pickle.py b/Lib/_compat_pickle.py
index 700c80cd574..978c01e8ef4 100644
--- a/Lib/_compat_pickle.py
+++ b/Lib/_compat_pickle.py
@@ -76,6 +76,62 @@ NAME_MAPPING = {
     ('itertools', 'ifilterfalse'): ('itertools', 'filterfalse'),
 }
 
+PYTHON2_EXCEPTIONS = (
+    "ArithmeticError",
+    "AssertionError",
+    "AttributeError",
+    "BaseException",
+    "BufferError",
+    "BytesWarning",
+    "DeprecationWarning",
+    "EOFError",
+    "EnvironmentError",
+    "Exception",
+    "FloatingPointError",
+    "FutureWarning",
+    "GeneratorExit",
+    "IOError",
+    "ImportError",
+    "ImportWarning",
+    "IndentationError",
+    "IndexError",
+    "KeyError",
+    "KeyboardInterrupt",
+    "LookupError",
+    "MemoryError",
+    "NameError",
+    "NotImplementedError",
+    "OSError",
+    "OverflowError",
+    "PendingDeprecationWarning",
+    "ReferenceError",
+    "RuntimeError",
+    "RuntimeWarning",
+    # StandardError is gone in Python 3, so we map it to Exception
+    "StopIteration",
+    "SyntaxError",
+    "SyntaxWarning",
+    "SystemError",
+    "SystemExit",
+    "TabError",
+    "TypeError",
+    "UnboundLocalError",
+    "UnicodeDecodeError",
+    "UnicodeEncodeError",
+    "UnicodeError",
+    "UnicodeTranslateError",
+    "UnicodeWarning",
+    "UserWarning",
+    "ValueError",
+    "Warning",
+    "ZeroDivisionError",
+)
+
+for excname in PYTHON2_EXCEPTIONS:
+    NAME_MAPPING[("exceptions", excname)] = ("builtins", excname)
+
+NAME_MAPPING[("exceptions", "StandardError")] = ("builtins", "Exception")
+
 # Same, but for 3.x to 2.x
 REVERSE_IMPORT_MAPPING = dict((v, k) for (k, v) in IMPORT_MAPPING.items())
 REVERSE_NAME_MAPPING = dict((v, k) for (k, v) in NAME_MAPPING.items())
-- 
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