

In [1]:

    
def swap(x, y):
    t = x
    x = y
    y = t
    return x, y



In [2]:

    
swap(10, 20)









    Out[2]:





(20, 10)



In [3]:

    
def swap(x, y):
    y, x = x, y
    return x, y



In [4]:

    
swap(10, 20)









    Out[4]:





(20, 10)

It does not have to be just integers



In [5]:

    
swap('hello', {i: i*i for i in range(3)})









    Out[5]:





({0: 0, 1: 1, 2: 4}, 'hello')