Chris wrote:
> Why can pickle serialize references to functions, but not methods?
Here's the recipe I use::
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)
import copy_reg
import types
copy_reg.pickle(types.MethodType, _pickle_method, _unpickle_method)
There may be some special cases where this fails, but I haven't run into
them yet.
STeVe
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