[issue22676] _pickle's whichmodule() is slow

[STINNER Victor]

STINNER Victor added the comment:

whichmodule_speedup.diff: I proposed once a more generic solution which is much more complex to implement. Lazy formatting of Exception message: in most cases, the message is not used. Replace AttributeError(message) with AttributeError(attr=name), only format when str(exc) is called.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22676>
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