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Data Types
A data type specifies the type of value a variable can contains. For example, a person’s name
must be stored as a string value whereas the person’s age must be stored as an integer. Data
types in Python are:
• int: Positive or negative whole numbers (without any fractions). Example: a = 3
• float: Any real number in which a fraction is denoted by a decimal symbol. Example: a = 3.5
• string: A string value is a collection of one or more characters put in single or double
quotes. Example: a="hello"
Comments in Python
Comments in Python can be used to explain parts of the code. It can also be used to
hide the code as well. Comments enable us to understand the way a program works.
In python, any statement starting with # symbol is known as a comment. Python does
not execute comments. Comments are not a part of the program, but they do enhance
the interactivity of the program and make it readable. Python supports two types of
comments: Single line comment and Multiline comment.
Single Line Comment
In case, a user wants to specify a single line comment, then comment must start with the
symbol #.
Example:
Program: Output:
# printing a string Hello World
print("Hello world")
Multiple-line Comment
Python does not have a syntax for multiline comments. To add a multiple line comment, you
could insert a # for each line.
Example:
Program : Output :
# printing a string Hello World
#print five names Rachna
print("Hello World") Sambhav
print("Rachna") Akshat
print("Sambhav") Tushar
print("Akshat")
print("Tushar")
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