Python (parameter passing)

Question

When passing a list as an argument in function why the following list is not changed ?

def foo(*x):

    y=sorted(x)

    print(y)



a=[3,2,1]

The function is returning

[[3, 2, 1]]

. Not

[[1,2,3]]

Why is this happening ? Is this something to do with call by value ?

Answer 1

Why creating another function? You can just do this

>>> a = [3,2,1]
>>> sorted(a)
[1, 2, 3]

However if you want to create another function. You have to call it.

def foo(x):
    y=sorted(x)
    return y
a = [3,2,1]
print(foo(a))

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