Use else statement in loops

You can use the else statement in the for and while loops in Python. The else statement is optional and executes if the loop iteration completes normally. If the loop is terminated with a break statement, the else statement will not be executed.

flowchart

syntax 1 

For <variable> in <sequence>:

statement 1

statement 2

:

else:

         statement(s)

syntax 2 

while<test condition>:

statement 1

statement 2

:

     else :

statement (s)

Example 1

 for a in range(1,4)

print("Element is ",end=' ')

print(a)

    else :

Print("Ending loop after printing all element of sequence ")

Example 2

while a<4:

print("Element is ",end=' ')

print(a)

    else :

Print("Ending loop after printing all element of sequence ")

Example 3

for x in range(6):

  print(x)

else:

  print("Finally finished!")

Example 4

for currentLetter in 'Hello world!': 

   print ('The current letter is', currentLetter)

   if currentLetter == 'w':

       break

else:

   print ('All letters were printed.')

Read also these

While Loop In Python 

range in python