How to pickle a subclass instance if super (from fixed library) rejects it?

Question

I'm subclassing logging.Logger and although I'm implementing __getstate__ very safely, I get an error by the superclass saying you cannot pickle this. How to get around this?

Minimal reporducible code:

import logging
class MyLogger(logging.Logger):
    def __getstate__(self): return {}

import pickle
pickle.dumps(MyLogger('name'))

Result:

PicklingError                             Traceback (most recent call last)
Input In [12], in <cell line: 1>()
----> 1 pickle.dumps(MyLogger('name'))

File C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.3312.0_x64__qbz5n2kfra8p0\lib\logging\__init__.py:1739, in Logger.__reduce__(self)
   1737 if getLogger(self.name) is not self:
   1738     import pickle
-> 1739     raise pickle.PicklingError('logger cannot be pickled')
   1740 return getLogger, (self.name,)

PicklingError: logger cannot be pickled

Answer 1

I solved it by overriding __reduce__ from superclass. I'm not sure though why __getstate__ & __setstate__ where not sufficient in this instance. They usually are.

    def __reduce__(self): return self.__class__, tuple(self.specs.values())