Merlijn van Deen <valhall...@gmail.com> added the comment:

OK, this is the pickle.py patch. A new parameter 'bytestr' has been added to 
both _Pickler and _Unpickler to toggle the pickle.string<=>bytes behaviour:

_Pickler:
IF protocol <= 2 AND bytestr=True
THEN bytes are stored as STRING/SHORT_BINSTRING/BINSTRING
ELSE (the old behaviour; obj for protocol <=2, else BINARY)

_Unpickler:
IF bytestr=True
THEN STRING/SHORT_BINSTRING/BINSTRING are read as bytes
ELSE they are read as str (old behaviour)

I also extracted the decoding stuff from the three string reading functions to 
a single one.

----------
keywords: +patch
Added file: http://bugs.python.org/file24568/pickle.py.patch

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<http://bugs.python.org/issue6784>
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