Python: Using `copyreg` to define reducers for types that already have reducers

Posted by cool-RR on Stack Overflow See other posts from Stack Overflow or by cool-RR
Published on 2010-05-28T21:48:27Z Indexed on 2010/05/28 21:52 UTC
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Filed under:

python

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function

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pickle

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copy-reg

(Keep in mind I'm working in Python 3, so a solution needs to work in Python 3.)

I would like to use the copyreg module to teach Python how to pickle functions. When I tried to do it, the _Pickler object would still try to pickle functions using the save_global function. (Which doesn't work for unbound methods, and that's the motivation for doing this.)

It seems like _Pickler first tries to look in its own dispatch for the type of the object that you want to pickle before looking in copyreg.dispatch_table. I'm not sure if this is intentional.

Is there any way for me to tell Python to pickle functions with the reducer that I provide?

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