Different forms of calling function and passing arguments to functions in python

Function definition	Function Caller	Function call mapping to function definition
def func(x,y)	func(a,b)	Positional matching of argument
	func(y=b, x=a)	Argument name matching
def func(x,y=10)	func(a) func(a,b)	Default value for argument
def func(x,y, *tuple_arg)	func(a,b) func(a,b,c) and many other arguments can be passed as positional arguments	Function with varying positional arguments stored in a tuple Example: def add(x,y, *tup):     temp = x+y     for elem in tup:         temp = temp + elem     return temp print add(1,2) # prints 3 print add(1,2,3,4) # prints 10
def func(x,y, **dict_arg)	func(a,b) func(a,b, c=10) func(a,b, c=10, name='abcd' ) and many other arguments can be passed as keyword argument	Function with varying keyword arguments stored in dictionary. Example: def percentage(mks1, mks2, **dict):     total_mks = mks1 + mks2     return total_mks / float( dict['out_of'] ) print percentage(65, 50, out_of=150)