Alexander Belopolsky <belopol...@users.sourceforge.net> added the comment:
The remaining bug is a bit harder. If you try to run unpickle-bug-2.py on the
same pickle, you get
$ python3 unpickle-bug-2.py /tmp/bug.pkl
<__main__.Bug object at 0x1006a8f40>
Traceback (most recent call last):
File "unpickle-bug-2.py", line 9, in <module>
bug = pickle.Unpickler(open(sys.argv[1], 'rb')).load() # doesn't
TypeError: ('__init__() takes exactly 2 arguments (1 given)', <class
'__main__.Bug'>, ())
The problem is acknowledged in the source code of instantiate function in
_pickle.c:
/* XXX: The pickle.py module does not create instances this way when the
args tuple is empty. See Unpickler._instantiate(). */
Clearly, this is wrong because pickle.py way succeeds where _pickle does not.
PS: I did not mean to unassign MAL, but I think this is more of
alexandre.vassalotti's issue.
----------
assignee: -> lemburg
Added file: http://bugs.python.org/file17787/unpickle-bug-2.py
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<http://bugs.python.org/issue5180>
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