Looping is a fundamental concept in programming, allowing you to execute a block of code multiple times. Python provides several loop mechanisms, the most common being the 'for' and 'while' loops.

a. The 'for' loop:

In Python, the 'for' loop iterates over a sequence (like a list or a string) or other iterable objects.

Code

for i in range(5):
    print(i)

Output

0
1
2
3
4

b. The 'while' loop:

The 'while' loop executes as long as a specified condition is true.

Code

count = 2
while count < 5:
    print(count)
    count += 1

Output

2
3
4

c. The 'break' and 'continue' statements:

'break' is used to exit a loop prematurely, while 'continue' skips the current iteration and moves to the next one. The range(5) function generates a sequence of numbers from 0 up to, but not including, 5, which our loop then iterates over.

Code

for i in range(5):
    if i == 3:
        break
    print(i)

Output

0
1
2