In [1]:

    

a = 1
b = 2


    

In [2]:

    

a, b = b, a


    

In [3]:

    

print('a = ', a)
print('b = ', b)


    

    




a =  2
b =  1

In [4]:

    

a, b = 100, 200


    

In [5]:

    

print('a = ', a)
print('b = ', b)


    

    




a =  100
b =  200

In [6]:

    

a, b, c, d = 0, 1, 2, 3


    

In [7]:

    

a, b, c, d = c, d, a, b


    

In [8]:

    

print('a = ', a)
print('b = ', b)
print('c = ', c)
print('d = ', d)


    

    




a =  2
b =  3
c =  0
d =  1

In [9]:

    

l = [0, 1, 2, 3, 4]


    

In [10]:

    

l[0], l[3] = l[3], l[0]


    

In [11]:

    

print(l)


    

    




[3, 1, 2, 0, 4]

In [12]:

    

print(sorted(l))


    

    




[0, 1, 2, 3, 4]

In [13]:

    

print(sorted(l, reverse=True))


    

    




[4, 3, 2, 1, 0]