New submission from Terry J. Reedy:
>>> import inspect
>>> class C:
def meth(*args): pass
>>> str(inspect.signature(C.meth))
'(*args)'
>>> c=C()
>>> str(s=inspect.signature(c.meth))
'()'
*args should have been left in even for the bound method, as idlelib calltips
do.
Since '*' is not a word character,
idlelib.Calltips._first_param = re.compile('(?<=\()\w*\,?\s*')
does not see '*args' as a substring to be deleted with
argspec = _first_param.sub("", argspec)
The same comment applies to
def meth2(**kwds): pass
even though calling the bound method would fail.
----------
messages: 209378
nosy: terry.reedy, yselivanov
priority: normal
severity: normal
stage: needs patch
status: open
title: inspect.signature removes initial starred method params (bug)
type: behavior
versions: Python 3.3, Python 3.4
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Python tracker <[email protected]>
<http://bugs.python.org/issue20401>
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