For Loop in Python with Examples

The for loop in Python allows the programmer to repeat a block of code indefinitely, or until some conditions change. The for loop can be used with other Python control flow statements, such as if and while loops. This article will discuss the basics of how to use the for loop in Python programming examples, including code snippets and explanations of their function. I highly recommend you get the “Python Crash Course Book” to learn Python.

Example 1: Print List Elements using For Loop

subjects = ['AI','ML','DL','DS']
for x in subjects:
    print(x)

subjects = ['AI','ML','DL','DS']

for x in subjects:

    print(x)

Output:

AI
ML
DL
DS

Example 2: For Loop on String

for n in "AiHints":
  print(n)

for n in "AiHints":

  print(n)

Output:

A
i
H
i
n
t
s

Example 3: For Loop Range

for n in range(7):
    print(n)

for n in range(7):

    print(n)

Output:

0
1
2
3
4
5
6

Example 4: For Loop Range (Initial and Final Position)

for n in range(15, 20):
    print(n)

for n in range(15, 20):

    print(n)

Output:

15
16
17
18
19

Example 5: For Loop Range with Step Size

for n in range(15, 30, 3):
    print(n)

for n in range(15, 30, 3):

    print(n)

Output:

15
18
21
24
27

Example 6: Create Table using For Loop

n = 2
for x in range(1, 11):
    print(n, "*", x, "=", x * n)

n = 2

for x in range(1, 11):

    print(n, "*", x, "=", x * n)

Output:

2 * 1 = 2
2 * 2 = 4
2 * 3 = 6
2 * 4 = 8
2 * 5 = 10
2 * 6 = 12
2 * 7 = 14
2 * 8 = 16
2 * 9 = 18
2 * 10 = 20

Example 7: For Loop Break Statement

subjects = ['AI','ML','DL','DS']
for x in subjects:
    print(x)
    if x == 'DL':
        break

subjects = ['AI','ML','DL','DS']

for x in subjects:

    print(x)

    if x == 'DL':

        break

Output:

AI
ML
DL

Example 8: For Loop Break

subjects = ['AI','ML','DL','DS']
for x in subjects:
    if x == 'DL':
        break
    print(x)

subjects = ['AI','ML','DL','DS']

for x in subjects:

    if x == 'DL':

        break

    print(x)

Output:

AI
ML

Example 9: For Loop Continue Statement

subjects = ['AI','ML','DL','DS']
for x in subjects:
    if x == 'DL':
        continue
    print(x)

subjects = ['AI','ML','DL','DS']

for x in subjects:

    if x == 'DL':

        continue

    print(x)

Output:

AI
ML
DS

Example 10: Nested For Loops Python

colors = ['blue', 'orange', 'red']
objects = ['table', 'chair', 'fan']

for i in colors:
    for j in objects:
        print(i, j)

colors = ['blue', 'orange', 'red']

objects = ['table', 'chair', 'fan']

​

for i in colors:

    for j in objects:

        print(i, j)

Output:

blue table
blue chair
blue fan
orange table
orange chair
orange fan
red table
red chair
red fan