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Issue #25486: Resurrect inspect.getargspec in 3.6. Backout a565aad5d6e1.

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The decision is that we shouldn't remove popular APIs (however long they
are depreacted) from Python 3, while 2.7 is still around and supported.
This commit is contained in:
Yury Selivanov 2016-01-11 15:15:01 -05:00
parent ec71f1779f
commit 37dc2b2883
5 changed files with 79 additions and 10 deletions
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25
Lib/inspect.py
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@ -1004,6 +1004,31 @@ def _getfullargs(co):
varkw = co.co_varnames[nargs]
return args, varargs, kwonlyargs, varkw
ArgSpec = namedtuple('ArgSpec', 'args varargs keywords defaults')
def getargspec(func):
"""Get the names and default values of a function's arguments.
A tuple of four things is returned: (args, varargs, keywords, defaults).
'args' is a list of the argument names, including keyword-only argument names.
'varargs' and 'keywords' are the names of the * and ** arguments or None.
'defaults' is an n-tuple of the default values of the last n arguments.
Use the getfullargspec() API for Python 3 code, as annotations
and keyword arguments are supported. getargspec() will raise ValueError
if the func has either annotations or keyword arguments.
"""
warnings.warn("inspect.getargspec() is deprecated, "
"use inspect.signature() instead", DeprecationWarning,
stacklevel=2)
args, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, ann = \
getfullargspec(func)
if kwonlyargs or ann:
raise ValueError("Function has keyword-only arguments or annotations"
", use getfullargspec() API which can support them")
return ArgSpec(args, varargs, varkw, defaults)
FullArgSpec = namedtuple('FullArgSpec',
'args, varargs, varkw, defaults, kwonlyargs, kwonlydefaults, annotations')