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Loops and Control Statements (continue, break and pass) in Python

Last Updated : 23 Jul, 2025

Python supports two types of loops: for loops and while loops. Alongside these loops, Python provides control statements like continue, break, and pass to manage the flow of the loops efficiently. This article will explore these concepts in detail.

A for loop in Python is used to iterate over a sequence (such as a list, tuple, string, or range).

# Iterating over a list
a = [1, 2, 3]
for i in a:
    print(i)

A while loop in Python repeatedly executes a block of code as long as a given condition is True.

# Using while loop
cnt = 0
while cnt < 5:
    print(cnt)
    cnt += 1

Control statements modify the loop's execution flow. Python provides three primary control statements: continue, break, and pass.

The break statement is used to exit the loop prematurely when a certain condition is met.

# Using break to exit the loop
for i in range(10):
    if i == 5:
        break
    print(i)

Explanation:

• The loop prints numbers from 0 to 9.
• When i equals 5, the break statement exits the loop.

The continue statement skips the current iteration and proceeds to the next iteration of the loop.

# Using continue to skip an iteration
for i in range(10):
    if i % 2 == 0:
        continue
    print(i)

Explanation:

• The loop prints odd numbers from 0 to 9.
• When i is even, the continue statement skips the current iteration.

The pass statement is a null operation; it does nothing when executed. It's useful as a placeholder for code that you plan to write in the future.

# Using pass as a placeholder
for i in range(5):
    if i == 3:
        pass  
    print(i)

Explanation:

• The pass statement does nothing and allows the loop to continue executing.
• It is often used as a placeholder for future code.

Exercise: How to print a list in reverse order (from last to the first item) using while and for-in loops.

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