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bpo-30149: Fix partialmethod without explicit self parameter (#1308) (#1662)

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Dong-hee Na 2017-06-15 23:41:57 +09:00 • committed by Serhiy Storchaka
parent cf58dfb44c
commit e45ea377b8
3 changed files with 48 additions and 4 deletions
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13
Lib/inspect.py
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@ -2241,11 +2241,16 @@ def _signature_from_callable(obj, *,
sigcls=sigcls)
sig = _signature_get_partial(wrapped_sig, partialmethod, (None,))
first_wrapped_param = tuple(wrapped_sig.parameters.values())[0]
new_params = (first_wrapped_param,) + tuple(sig.parameters.values())
return sig.replace(parameters=new_params)
if first_wrapped_param.kind is Parameter.VAR_POSITIONAL:
# First argument of the wrapped callable is `*args`, as in
# `partialmethod(lambda *args)`.
return sig
else:
sig_params = tuple(sig.parameters.values())
assert first_wrapped_param is not sig_params[0]
new_params = (first_wrapped_param,) + sig_params
return sig.replace(parameters=new_params)
if isfunction(obj) or _signature_is_functionlike(obj):
# If it's a pure Python function, or an object that is duck type