Benjamin Peterson added the comment:

While we don't print the whole signature, this is much improved in 3.3:

>>> def foo(a,b=4,c="hello"): pass
>>> foo()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: foo() missing 1 required positional argument: 'a'

----------
nosy: +benjamin.peterson
resolution:  -> rejected
status: open -> closed

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19810>
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