Loops

1. 🔎 What is a for loop?

A loop lets us repeat code without writing it multiple times.
A for loop is used when we want to go through (or iterate over) a sequence of items, like numbers, letters, or elements in a list.

2. 🖥️ Basic Syntax

for variable in sequence:
    # code to run each time

• variable → takes each value from the sequence one by one.
• sequence → the collection we’re looping through (like a list or range).
• Indentation (spaces) is very important in Python!

3. 📚 Examples

Example 1: Looping through a list

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

for fruit in fruits:
    print(fruit)

👉 Output:

apple
banana
cherry

Example 2: Looping through a string

for letter in "Python":
    print(letter)

👉 Output:

P
y
t
h
o
n

Example 3: Using range()

for number in range(5):
    print(number)

👉 Output:

0
1
2
3
4

⚡ Note: range(5) gives numbers from 0 up to 4 (not including 5).