🐍 Python For Loops (Iteration) 🔄

For loops are used to iterate over a sequence (like a list, tuple, string, or range) or other iterable objects. They let you execute a block of code repeatedly for each item.

👉 They are essential for automating tasks and processing collections of data efficiently.

🔹 1. What is a For Loop?

A for loop executes a set of statements, once for each item in a collection.

Example:

for character in "Python":
    print(character)

Output:
P
y
t
h
o
n

🔹 2. Looping Through a List

This is one of the most common uses: going through each item in a list.

Syntax:

for item in list_name:
    # code to execute for each item

Example:

fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
    print(f"I like {fruit}.")

Output:
I like apple.
I like banana.
I like cherry.

🔹 3. The range() Function

The range() function generates a sequence of numbers, often used to loop a specific number of times.

• range(stop): Numbers from 0 up to (but not including) stop.
• range(start, stop): Numbers from start up to (not including) stop.
• range(start, stop, step): Numbers from start up to stop, increasing by step.

Example:

for i in range(3): # Loop 3 times (0, 1, 2)
    print(f"Iteration {i}")

Output:
Iteration 0
Iteration 1
Iteration 2

🔹 4. break and continue Statements

• break: Stops the loop completely, even if the iterable hasn't finished.
• continue: Skips the rest of the current iteration and moves to the next.

Example (break):

for number in range(1, 6):
    if number == 4:
        break # Stop when number is 4
    print(number)

Output:
1
2
3

Example (continue):

for item in ["A", "B", "C", "D"]:
    if item == "C":
        continue # Skip 'C'
    print(item)

Output:
A
B
D

🎯 Today's Goal(What you should do)

✔️ Understand what for loops are
✔️ Iterate over lists, strings, and ranges (using your Python editor)
✔️ Use break and continue to control loop flow (using your Python editor)