if-else Statement in Python

Here we will learn about the second type of conditional statement, the if-else statement.

if-else Statement in Python

The if-else statement is used to execute one block of code when a condition evaluates to True, and a different block of code when the condition evaluates to False. If the condition result is True, the statements inside the if block are executed. If the condition result is False, the statements inside the else block are executed.


Syntax:
if condition:
    statements
else:
    statements

In the above syntax, condition is a Boolean expression. If the condition evaluates to True, the if block is executed. If the condition evaluates to False, the else block is executed.

Algorithm to Check Pass or Fail


Step 1: Start
Step 2: Read marks
Step 3: If marks >= 35
            Print "Pass"
Step 4: Else
            Print "Fail"
Step 5: Stop

Flowchart

The following program demonstrates the if-else statement in Python


# Program to check pass or fail
marks = 60

if marks >= 35:
    print("Pass")
else:
    print("Fail")

Output:
Pass

marks = 60:
The student marks are assigned as 60.
if marks >= 35:
The condition is checked. Since 60 ≥ 35, the condition evaluates to True.
print("Pass"):
Because the condition is True, "Pass" is printed.
else:
This block executes only if the condition is False, which is not the case here.

What We Have Learned So Far

Learned about the if-else statement
Wrote and understood a program using the if-else statement

We will learn about the if-elif-else ladder in the next topic.

Below Video Explains if-else Statement in Python

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if-else Statement in Python