gistfile1.py

In [1]: class A():
   ...:     def __call__(self, *args, **kwargs):
   ...:         return locals()
   ...:     

In [2]: a = A()

In [3]: a()
Out[3]: {'args': (), 'kwargs': {}, 'self': <__main__.A instance at 0x281b2d8>}

In [4]: a(1)
Out[4]: {'args': (1,), 'kwargs': {}, 'self': <__main__.A instance at 0x281b2d8>}

In [5]: a(1,3)
Out[5]: {'args': (1, 3), 'kwargs': {}, 'self': <__main__.A instance at 0x281b2d8>}

In [6]: a(1, 3, c=4)
Out[6]: 
{'args': (1, 3),
 'kwargs': {'c': 4},
 'self': <__main__.A instance at 0x281b2d8>}

In [7]: