Python Basics — Loops

Loops

Loops let you repeat code — running a block multiple times without writing it multiple times. They’re one of the most powerful tools in programming.

What You’ll Learn

Topic	Description
For Loop	Iterate over sequences
While Loop	Repeat while a condition is true
break, continue, pass	Control loop flow
range(), enumerate(), zip()	Essential loop helpers
Nested Loops	Loops inside loops
Practice Exercises	Test your skills

Why Loops Matter

Without loops, printing numbers 1 to 1000 would need 1000 print() statements. With a loop:

for i in range(1, 1001):
    print(i)

Loops are everywhere:

• Processing items in a list
• Reading lines from a file
• Retrying a failed operation
• Running a game until the player quits
• Searching through data

Quick Preview

fruits = ["apple", "banana", "cherry"]

for fruit in fruits:
    print(f"I love {fruit}!")

Output:

I love apple!
I love banana!
I love cherry!

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Start Learning: For Loop →