[issue19395] unpickled LZMACompressor is crashy

[Nadeem Vawda]

Nadeem Vawda added the comment:

Yes, that's because the builtin map function doesn't handle each input
in a separate process, so it uses the same LZMACompressor object
everywhere. Whereas multiprocessing.Pool.map creates a new copy of the
compressor object for each input, which is where the problem comes in.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19395>
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