Types of Loops in Python

Python has two types of loops:

• while loop

• for loop

  Both loops help in repeating a block of code

while Loop – Basics

i = 1

while i < 6:

print(i)

i += 1

-Repeats as long as the condition is true
- Don’t forget to increment or modify the loop variable, or it becomes an infinite loop

while Loop – break

i = 1

while i < 6:

print(i)

if i == 3:

break

i += 1


- break exits the loop even if the condition is still true

while Loop – continue

i = 0

while i < 6:

i += 1

if i == 3:

continue

print(i)

Skips the current iteration when i == 3, then continues

For Loop

for x in range(6):

print(x)






- A for loop is used for iterating over a sequence (list,tuple,strings)
- Generates a sequence: 0 to 5 (not including 6)

​fruits = ["apple", "banana", "cherry"]
for x in fruits:
  print(x)

For Loop - break statement

fruits = ["apple", "banana", "cherry"]
for x in fruits:
  print(x)
  if x == "banana":
    break


Exit the loop when x is "banana"

For Loop - continue statement

fruits = ["apple", "banana", "cherry"]
for x in fruits:
  if x == "banana":
    continue
  print(x)


Exit the loop when x is "banana"

Using for & while loop in Turtle

from turtle import*
fd(100)
rt(90)
fd(100)
rt(90)
fd(100)
rt(90)
fd(100)

​from turtle import*
for i in range(4):
fd(100)
rt(90)

Activity

Sonam wants to generate multiplication table of 1, 2 and 3 upto 10 using nested while loop. Write the code