Understanding Python Conditions and Loops: A Beginner&#s Guide

Barbara Streisand
Release: 2024-09-28 16:10:30
Original
841 people have browsed it

Mastering conditions and loops in Python is essential for controlling program flow and repeating tasks efficiently. Ready to dive in? Let's break it down step-by-step!

1. If-Else Conditions

The if-else statement lets your program make decisions. If a condition is True, a block of code runs; otherwise, the else block executes.

Example: Check Voter Eligibility by Age

age = 20
if age >= 18:
    print("You are eligible to vote.")
else:
    print("You are not eligible to vote.")
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2. Elif: Handling Multiple Conditions

The elif statement allows you to check multiple conditions sequentially. If the first condition is False, Python checks the next one.

Example: Finding the Greatest Number

num1, num2, num3 = 5, 10, 3
if num1 > num2 and num1 > num3:
    print("num1 is the greatest")
elif num2 > num3:
    print("num2 is the greatest")
else:
    print("num3 is the greatest")
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3. For Loops

The for loop repeats a block of code for a specific number of iterations. Ideal when you know how many times you want to loop through a sequence.

Example: Looping with a Range

for i in range(1, 11):
    print(i)
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4. While Loops

The while loop continues to execute a block of code as long as a specified condition is True. Useful when the number of iterations is unknown.

Example: While Loop Counting to 10

i = 1
while i <= 10:
    print(i)
    i += 1
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Conditions and loops are the backbone of decision-making and repetition in Python. Mastering if-else, elif, for, and while loops will elevate your coding skills.

Want to dive deeper? Read my full article on mastering conditions and loops in Python on @hashnode! Happy coding ❤

Understanding Python Conditions and Loops: A Beginner

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