[issue20401] inspect.signature removes initial starred method params (bug)

[Terry J. Reedy]

Terry J. Reedy added the comment:

There does not appear to be a test for this. If so, this case may not have ever worked right. Here is the only failure at the moment (which should also be fixed).

F:\Python\dev>4\py34\pcbuild\python_d.exe -m test test_inspect
[1/1] test_inspect
test test_inspect failed -- Traceback (most recent call last):
  File "F:\Python\dev\4\py34\lib\test\test_inspect.py", line 1623, in test_signature_on_builtins
    test_callable(type)
  File "F:\Python\dev\4\py34\lib\test\test_inspect.py", line 1604, in test_callable
    signature = inspect.signature(o)
  File "F:\Python\dev\4\py34\lib\inspect.py", line 1555, in signature
    raise ValueError('callable {!r} is not supported by signature'.format(obj))
ValueError: callable <class 'type'> is not supported by signature

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20401>
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