variables.py

# variables is a way by which we associates names with objects.

# A variable is associated with the objects with the help of assignment operator.

#example:-

a=4
b=5

print(a)

print(b)


# output --- 4 , 5

#python variables are case sensitive.

# python has a small number of keywords.

#variables can contain uppercase,lowercase ,digit and special character.

>>> a23 =45
>>> print(a23)
45

#variables names cannot start with digit.

>>> 2as =34
  File "<stdin>", line 1
    2as =34
      ^
SyntaxError: invalid syntax



#python allows multiple assignment .

a , b = 2, 3

print (a,b)


#output --- 2 3


#another example :-

a, b = 2,3

a,b = b,a 


print (a ,b)



#output :-  3 2