使用元组作为函数中的输入

Question

Suppose I define a function like so, where args should be a tuple that contains two elements, an example would be (1,2) :

def func(some_matrix,*args):
        return some_multiplication = some_matrix[0,first element of args] * some_matrix[0,second element of args]

How do I access the first and second elements of the tuple passed by the user in the body of the function? I also suppose that an example of calling a function would look something like: func(A,(1,2)) ?

Answer 1

You could do that using list indexing or tuple indexing in this case

def acd(val, *vag):
    print '''Given Fixed value:\t{}
    Given Variable Tuple:\t{}
    First Var Value:\t{}
    Second Var value:\t{}
    Len of var:\t{}
    Len of first var element:\t{}
    '''.format(val, vag, vag[0][0], vag[0][1], len(vag), len(vag[0]))
acd(1, (3,4))

Output:

Given Fixed value:      1
Given Variable Tuple:   ((3, 4),)
First Var Value:        3
Second Var value:       4
Len of var:     1
Len of first var element:       2