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inspect.Signature.bind: Fix pos-only params with defaults; fix *args in named args #19140

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Initial patch by Yann Kaiser (epsy).
This commit is contained in:
Yury Selivanov 2014-01-28 17:27:39 -05:00
parent 8757ead38e
commit 38b0d5a778
2 changed files with 33 additions and 8 deletions
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16
Lib/inspect.py
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@ -2258,6 +2258,8 @@ class Signature:
parameters_ex = (param,)
break
else:
# No default, not VAR_KEYWORD, not VAR_POSITIONAL,
# not in `kwargs`
if partial:
parameters_ex = (param,)
break
@ -2296,19 +2298,17 @@ class Signature:
# keyword arguments
kwargs_param = None
for param in itertools.chain(parameters_ex, parameters):
if param.kind == _POSITIONAL_ONLY:
# This should never happen in case of a properly built
# Signature object (but let's have this check here
# to ensure correct behaviour just in case)
raise TypeError('{arg!r} parameter is positional only, '
'but was passed as a keyword'. \
format(arg=param.name))
if param.kind == _VAR_KEYWORD:
# Memorize that we have a '**kwargs'-like parameter
kwargs_param = param
continue
if param.kind == _VAR_POSITIONAL:
# Named arguments don't refer to '*args'-like parameters.
# We only arrive here if the positional arguments ended
# before reaching the last parameter before *args.
continue
param_name = param.name
try:
arg_val = kwargs.pop(param_name)