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from __future__ import absolute_import
import copy_reg
import types
def _pickle_method(method):
func_name = method.im_func.__name__
obj = method.im_self
cls = method.im_class
return _unpickle_method, (func_name, obj, cls)
def _unpickle_method(func_name, obj, cls):
for cls in cls.mro():
try:
func = cls.__dict__[func_name]
except KeyError:
pass
else:
break
return func.__get__(obj, cls)
# https://bytes.com/topic/python/answers/552476-why-cant-you-pickle-instancemethods
copy_reg.pickle(types.MethodType, _pickle_method, _unpickle_method)
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