help() of a method wrongly identifies it as a module-level function

Consider the following class:

class K:
    def verbify(self):
        """Docstring"""

help() on the unbound method (actually a function) K.verbify wrongly identifies it as a module-level function, displaying this in Python3.10:

Help on function verbify in module __main__:

verbify(self)
    Docstring

It should identify the function using __qualname__ rather than __name__':

>>> K.verbify.__qualname__
'K.verbify'
>>> K.verbify.__name__
'verbify'

In contrast, help() on the bound method correctly identifies that verbify is a method belonging to K: help(K().verbify) displays verbify() method of __main__.K instance.

使用提供的 K.verbify 範例重現問題，並比較 help(K.verbify) 與 help(K().verbify)。追蹤 help() 使用的實作，並更新未繫結函式的描述以使用 qualname；當它能夠識別 K.verbify，同時保留現有的繫結方法描述時，即完成。