Page 125 - Computing E-Book Grade 7

The City School 2021-2022

5.11. Conditional Statements in Python

Conditional statement is a set of rules performed if a certain condition is met.

IF Statement

IF statement is a programming conditional statement that, if proved true, performs a

function or displays information. An if statement in python is written by using the IF
keyword. The sample code below shows the if statement in python. Programming the Computer-Python

Sample Code

# This program compares two numbers
using if
a = 33

b = 200

# if block
if b > a:
print(“b is greater than a”)

In this example, we use two variables, a and b, which are used as part of the if
statement to test whether b is greater than a. As a is 33, and b is 200, we know that
200 is greater than 33, and so we print to screen that “b is greater than a”.

Indentation is necessary; if we do not use the indentation as mentioned in example,

python will give an error.

ELIF Statement

The ELIF keyword is Python’s way of saying if the previous conditions were not true,

then try this condition. The sample code below demonstrates Elif statement.

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