Module 6: Control Statements

for Loop

INTERACTIVE CHEAT SHEET

The Concept

The for loop lets you repeat a block of code once for each item in a sequence — such as a list, a string, or a range of numbers. Python reads the sequence from left to right, assigns each item to a loop variable, and runs the indented body before moving to the next item. When every item has been visited, the loop ends and execution continues with the next unindented line. The built-in range() function is the most common way to generate a sequence of numbers for counting loops.

Key Points

for variable in sequence: runs the body once per item.
range(n) generates numbers from 0 up to n-1.
range(start, stop) generates numbers from start up to stop-1.
range(start, stop, step) adds a custom step between numbers.
The loop variable updates automatically on each iteration.
Indentation (4 spaces) defines which lines belong to the loop body.
After the last item, execution continues past the loop.

Core Concept Mastery • Python Visual Series Module

🔥Module 1: Python Setup & Basics

Module 2: Variables & Memory

Module 3: Data Types

Module 4: Operators

Module 5: Conditional Statements

Module 6: Control Statements

Module 7: Lists, Tuples, Sets & Dictionaries

Module 8: Functions

Module 9: Classes & Objects

for Loop

The Concept

Key Points

for Loop

The Concept

Key Points