>>> test1 = partial(test_partial,1,2) >>> test1(3,4) 1 2 3 4
>>> test4 = partial(test_partial, c=3, d=4) >>> test4(1,2) 1 2 3 4
>>> test5(1,c=3) 1 2 3 4 >>> test6(c=3,d=4) 1 3 3 4