Python Recursion Example

Below code demonstrates recursion in Python programming. Recursion occurs when a method calls itself.

#Python recursion
#Recursion in Python is when a program calls itself.

def countdown_timer(x):
    if x == 0:
        print("Stop")
        return
    else:
        print(x, "...")
        countdown_timer(x - 1)

countdown_timer(10)

------------------------------------------------------------
#Output


10 ...
9 ...
8 ...
7 ...
6 ...
5 ...
4 ...
3 ...
2 ...
1 ...
Stop








When we add a print method at the else statement then let's see what happens.






#Python recursion
#Recursion in Python is when a program calls itself.

def countdown_timer(x):
    if x == 0:
        print("Stop")
        return
    else:
        print(x, "...")
        countdown_timer(x - 1)
        print("Do something!")

countdown_timer(10)







----------------------------------------------------------


#Output


10 ...
9 ...
8 ...
7 ...
6 ...
5 ...
4 ...
3 ...
2 ...
1 ...
Stop
Do something!
Do something!
Do something!
Do something!
Do something!
Do something!
Do something!
Do something!
Do something!
Do something!









































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