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Python Program to Print Odd Numbers in a List

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In this article, we will show you, How to write a Python Program to Print Odd Numbers in a List using For Loop, While Loop, and Functions with practical example.

Before you start, please refer List article to understand everything about Lists.

Python Program to Print Odd Numbers in a List using For Loop

In this python program, we are using For Loop to iterate each and every element in this List. Inside the loop we are using If statement to check and print odd numbers.

# Python Program to Print Odd Numbers in a List

NumList = []

Number = int(input("Please enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
    value = int(input("Please enter the Value of %d Element : " %i))
    NumList.append(value)

print("\nOdd Numbers in this List are : ")
for j in range(Number):
    if(NumList[j] % 2 != 0):
        print(NumList[j], end = '   ')

OUTPUT

Python Program to Print Odd Numbers in a List 1

ANALYSIS
User entered elements = [3, 4, 5, 9]

For Loop – First Iteration: for 0 in range(0, 4)
The condition is True so, compiler will enter into the If Statement

if(NumList[0] % 2 != 0) => if(3 % 2 != 0) – Condition is True
This Number will be printed.

Second Iteration: for 1 in range(0, 4) – Condition is True
if(NumList[1] % 2 != 0) => if(4 % 2 != 0) – Condition is False
This Number is Skipped.

Third Iteration: for 2 in range(0, 4) – Condition is True
if(NumList[2] % 2 != 0) => if(5 % 2 != 0) – Condition is True
This Number is printed.

Fourth Iteration: for 3 in range(0, 4) – Condition is True
if(9 % 2 != 0) – Condition is True
This Number is also printed.

Fifth Iteration: for 4 in range(0, 4) – Condition is False
So compiler will exit from For Loop

Python Program to Print Odd Numbers in a List using While loop

This program for odd numbers is same as above. We just replaced the For Loop with While loop.

# Python Program to Print Odd Numbers in a List

NumList = []
j = 0

Number = int(input("Please enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
    value = int(input("Please enter the Value of %d Element : " %i))
    NumList.append(value)

print("\nOdd Numbers in this List are : ")
while(j < Number):
    if(NumList[j] % 2 != 0):
        print(NumList[j], end = '   ')
    j = j + 1

OUTPUT

Python Program to Print Odd Numbers in a List 2

Python Program to Print Odd Numbers in a List using Functions

This program is same as first example. However, we separated the logic using Functions

# Python Program to Print Odd Numbers in a List

def odd_numbers(NumList):
    for j in range(Number):
        if(NumList[j] % 2 != 0):
            print(NumList[j], end = '   ')

      
NumList = []
Number = int(input("Please enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
    value = int(input("Please enter the Value of %d Element : " %i))
    NumList.append(value)

print("\nOdd Numbers in this List are : ")
odd_numbers(NumList)

OUTPUT

Python Program to Print Odd Numbers in a List 3