While Loop in Python

While Loop in Python

Introduction:
A while loop in Python allows you to repeatedly execute a block of code as long as a specific condition remains True. The loop continues until the condition becomes False. This control structure is useful when you want to execute a set of instructions multiple times based on some condition.

Syntax:

python
while condition:
    # Code block to be executed while the condition is True

Example:
Let's say we want to print numbers from 1 to 5 using a while loop:

python
count = 1
while count <= 5:
    print(count)
    count += 1

Explanation:

• We initialize the variable count with a value of 1.
• The while loop checks the condition count <= 5. If it evaluates to True, the code block inside the loop is executed.
• The loop prints the value of count and then increments it by 1 using count += 1.
• The loop continues executing as long as the condition count <= 5 remains True.
• When count becomes 6, the condition becomes False, and the loop terminates.

Output:

1
2
3
4
5

Note:
It's essential to ensure that the condition within the while loop eventually becomes False, otherwise, the loop will run indefinitely, leading to an infinite loop. To avoid this, you can include a mechanism to break out of the loop under certain conditions.