How To Print Odd Numbers In Python

In this tutorial, we will demonstrate how to print odd numbers in Python. Working with numbers and understanding how to manipulate them is a fundamental skill in programming. After reading this tutorial, you will be able to print odd numbers in Python using different methods. Let’s get started!

Step 1: Using for loop and if statement

The first method to print odd numbers involves using a for loop and an if statement. Here’s how to do it:

  1. Determine the range of numbers you want to work with. For this example, we’ll print all odd numbers between 1 and 20.
  2. Create a for loop to iterate through the range of numbers.
  3. Use an if statement to check if each number is odd, by taking the remainder of the division by 2 using the modulus (%) operator. If the remainder is 1, then the number is odd.
  4. Print the odd numbers.
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for number in range(1, 21):
    if number % 2 == 1:
        print(number)

Output:

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19

Step 2: Using list comprehension

Another method to print odd numbers in Python is using list comprehension, an efficient and concise way to create lists based on existing lists. Here’s how it works:

  1. Determine the range of numbers you want to work with, as before.
  2. Use list comprehension to generate a list of odd numbers.
  3. Use a for loop to print the odd numbers in the list.
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odd_numbers = [number for number in range(1, 21) if number % 2 == 1]
 
for odd_number in odd_numbers:
    print(odd_number)

Output:

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19

Step 3: Using the range function with step parameter

The range function can also be used to directly generate a sequence of odd numbers by utilizing the step parameter. Here’s the process:

  1. Determine the range of numbers you want to work with, as before.
  2. Use the range function with a start point of 1, end point, and a step of 2. This effectively skips every even number.
  3. Create a for loop to iterate through the range and print the odd numbers.
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for odd_number in range(1, 21, 2):
    print(odd_number)

Output:

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19

Full code:

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# Method 1: Using for loop and if statement
for number in range(1, 21):
    if number % 2 == 1:
        print(number)
 
# Method 2: Using list comprehension
odd_numbers = [number for number in range(1, 21) if number % 2 == 1]
for odd_number in odd_numbers:
    print(odd_number)
 
# Method 3: Using the range function with step parameter
for odd_number in range(1, 21, 2):
    print(odd_number)

Conclusion

In this tutorial, we explored three different methods to print odd numbers in Python: using a for loop with an if statement, using list comprehension, and using the range function with a step parameter. Each method can be used depending on your preferences and the specific requirements of your code. Happy coding!