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Merged revisions 67940 via svnmerge from

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svn+ssh://svn.python.org/python/branches/py3k

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  r67940 | alexandre.vassalotti | 2008-12-27 10:30:39 +0100 (Sat, 27 Dec 2008) | 4 lines

  Fix issue #4374: Pickle tests fail w/o _pickle extension.

  Add an initialization check to mimic the interface of _pickle.
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This commit is contained in:
Georg Brandl
2009-01-03 23:38:23 +00:00
parent a12d9d4645
commit cddb073e14
1 changed files with 10 additions and 0 deletions
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10
Lib/pickle.py
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@@ -222,6 +222,11 @@ class _Pickler:
def dump(self, obj):
"""Write a pickled representation of obj to the open file."""
# Check whether Pickler was initialized correctly. This is
# only needed to mimic the behavior of _pickle.Pickler.dump().
if not hasattr(self, "write"):
raise PicklingError("Pickler.__init__() was not called by "
"%s.__init__()" % (self.__class__.__name__,))
if self.proto >= 2:
self.write(PROTO + bytes([self.proto]))
self.save(obj)
@@ -789,6 +794,11 @@ class _Unpickler:
Return the reconstituted object hierarchy specified in the file.
"""
# Check whether Unpickler was initialized correctly. This is
# only needed to mimic the behavior of _pickle.Unpickler.dump().
if not hasattr(self, "read"):
raise UnpicklingError("Unpickler.__init__() was not called by "
"%s.__init__()" % (self.__class__.__name__,))
self.mark = object() # any new unique object
self.stack = []
self.append = self.stack.append