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On the output screen, a = 20 and b = 40 will be printed. You can also assign the same value to
multiple variables at the time in the following way:

a = b = 20

print ("a=", a)

print ("b=", b)
On the output screen, a = 20 and b = 20 will be printed.

You can also assign multiple values to multiple variables in the same line in the following way:

name, age, grade="Deepak", 12, ‘VII’

print ("Name is", name)

print ("Age is", age)

print ("Grade is", grade)
On the output screen, Name is Deepak, Age is 12 and Grade is VII will be printed.

You must follow the given rules while creating and naming the variables:

A variable name must start with a letter or underscore character.

A variable name cannot start with a number.
A variable name can only contain alphanumeric characters (all the letters of the alphabet and

numbers) and underscores (_).

Variable names are case-sensitive.
Variable names cannot contain any special character or symbol.

DATA TYPES

Data types are used to define the type of value a data can contain. Each variable in Python is
associated with some data type. Each data type requires a different amount of memory and has some

specific operations performed on it.
Data types are divided into four categories as shown below:

Data Types

Numbers Dictionary Sets Sequence Boolean

Integer/long Float String List

Complex Tuple

Introduction to Python 77