[issue6395] Add Pickle Support to the codecs Module

[Marc-Andre Lemburg]

Marc-Andre Lemburg <mal at egenix.com> added the comment:

I don't understand the use case for this. 

If the StreamWriter/Reader cannot pickle the underlying stream (which is
probably always the case), why should the object itself be pickleable ?

What we could do is implement .__get/setstate__() and have it raise an
exception to inform the user of the problem.

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nosy: +lemburg

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