Loops in Python

Loops are used to execute a block of code repeatedly. They help reduce repetition and make programs efficient.

💡 Python mainly uses for loops and while loops.

For Loop

A for loop is used to iterate over a sequence such as a list, string, or range. 

for i in range(1, 6):
    print(i)

While Loop

A while loop runs as long as a condition is true. 

count = 1
while count <= 5:
    print(count)
    count += 1

Loop Control Statements

  • break – exits the loop
  • continue – skips the current iteration
  • pass – does nothing (placeholder)
for i in range(1, 6):
    if i == 3:
        continue
    if i == 5:
        break
    print(i)

Common Mistakes

❌ Infinite loops due to wrong condition
❌ Forgetting to update loop variables

Practice Exercises

  1. Print numbers from 1 to 10 using a loop
  2. Print even numbers between 1 and 20
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