Print Fibonacci Sequence in Python Programming

In this example, you will learn to print Fibonacci sequence with example.

What is Fibonacci Sequence?

The Fibonacci sequence is a sequence where the next term is the sum of the previous two terms. The first two terms of the Fibonacci sequence are 0 followed by 1.

    
The Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8,..., n
    

Example :

    
# Program to display the Fibonacci sequence up to n-th term
length = int(input("Enter Length :: "))
# first two terms
n1, n2 = 0, 1
count = 0

# check if the number of length is positive or not
if length <= 0:
   print("Please enter a positive integer")

elif length == 1:
   print("Fibonacci sequence up to ",length,":")
   print(n1)
else:
   print("Fibonacci sequence:")
   while count < length:
       print(n1)
       nth = n1 + n2
       # update values
       n1 = n2
       n2 = nth
       count += 1
   

Output :

    
Enter Length :: 10
Fibonacci sequence:
0
1
1
2
3
5
8
13
21
34
    

Explanation :

This program will ask user to inputted a number and checks number is positive or not. if number is 1 then it simply prints first element of sequence otherwise it will loop till user inputted number.