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Thu Jul 4 15:59:23 CEST 2013 · https://mail.python.org/pipermail/python-dev/2013-July/127179.html

2013/7/4 Chris Withers <chris at simplistix.co.uk>:
> That doesn't seem helpful as a sensible way to get back to the class object:
>
>>> globals()[MyClass.method.__qualname__.split('.')[0]]
> <class '__main__.MyClass'>

globals() can only be used if MyClass is in the same module.
Otherwise, you a more complex function:
---------------
import types

def get_function_class(func):
    obj = func
    for name in func.__qualname__.split('.')[:-1]:
        if name == "<locals>":
            raise ValueError("you lose")
        if isinstance(obj, types.FunctionType):
            obj = func.__globals__[name]
        else:
            # get a method of a class, or a class defined in a child
            obj = getattr(obj, name)
    return obj
---------------

Victor

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[Python-Dev] lament for the demise of unbound methods