Steven Bethard wrote:
> Here's the recipe I use::
>
> [...]
>
> There may be some special cases where this fails, but I haven't run into
> them yet.
Wow, that's a really nice recipe; I didn't even know about the copy_reg
module. I'll have to start using that.
I did notice one failure mode, however--it doesn't work with methods
named __foo because im_func.__name__ contains the *unmangled* version
of the function name, so when you try to unpickle the method, the try
statement never succeeds and you get an UnboundLocalError on func.
The good news is that I think it can be fixed by mangling the name
manually in _pickle_method(), like so:
def _pickle_method(method):
func_name = method.im_func.__name__
obj = method.im_self
cls = method.im_class
if func_name.startswith('__') and not func_name.endswith('__'):
cls_name = cls.__name__.lstrip('_')
if cls_name: func_name = '_' + cls_name + func_name
return _unpickle_method, (func_name, obj, cls)
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