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v0.8.1
https://github.com/python/cpython
09 December 2020, 11:06:31 UTC
Revision 0e5088fcc44b42879b728a495456f4b6d4181de0 authored by cvs2svn on 17 October 1998, 19:44:20 UTC, committed by cvs2svn on 17 October 1998, 19:44:20 UTC 
This commit was manufactured by cvs2svn to create tag 'r152a2'.
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Tip revision: 0e5088fcc44b42879b728a495456f4b6d4181de0 authored by cvs2svn on 17 October 1998, 19:44:20 UTC
This commit was manufactured by cvs2svn to create tag 'r152a2'.
Tip revision: 0e5088f
copy_reg.py 
# Helper to provide extensibility for pickle/cPickle.

dispatch_table = {}
safe_constructors = {}

def pickle(ob_type, pickle_function, constructor_ob = None):
    dispatch_table[ob_type] = pickle_function

    if constructor_ob is not None:
        constructor(constructor_ob)

def constructor(object):
    safe_constructors[object] = 1

# Example: provide pickling support for complex numbers.

def pickle_complex(c):
    return complex, (c.real, c.imag)

pickle(type(1j), pickle_complex, complex)
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