How to Remove Odd Indexed Characters in a String in Python

Submitted by razormist on Sunday, October 12, 2025 - 22:49.

In this tutorial, we will learn how to program "How to Remove Odd Indexed Characters in a String in Python." The objective is to remove characters at odd indices from a given string. This tutorial will guide you step by step through methods for finding and removing those characters. By the end of this tutorial, you will have a solid understanding of how to implement this task effectively in Python, helping you strengthen your problem-solving abilities and improve your coding skills.

This topic is straightforward to understand. Simply follow the instructions provided, and you will complete it with ease. The program will guide you step by step through the process of removing characters at odd indices. So, let’s dive into the coding process!

Getting Started:

First you will have to download & install the Python IDLE's, here's the link for the Integrated Development And Learning Environment for Python https://www.python.org/downloads/.

Creating Main Function

This is the main function of the application. The following code will display a simple GUI in terminal console that will display program. To do this, simply copy and paste these blocks of code into the IDLE text editor.

def modify(string):  
    final = ""   
    for i in range(len(string)):  
        if i % 2 == 0:  
            final = final + string[i]  
    return final
 
 
while True:
    print("\n================== Remove Odd Indexed Characters in a String ==================\n")
 
    string = input("Enter a string: ")  # replaced raw_input with input
    print("Modified string is:")
    print(modify(string))
 
    opt = input("\nDo you want to try again? (yes/no): ").strip().lower()
    if opt == 'no':
        print("Exiting program...")
        break
    elif opt != 'yes':
        print("Invalid choice. Exiting program...")
        break

This program removes characters from a string that are located at odd indexes. It defines a function `modify()` that iterates through each character in the input string and keeps only those at even positions (0, 2, 4, ...). The user is prompted to enter a string, and the modified version—containing only even-indexed characters—is displayed. The program then asks whether the user wants to try again or exit.

Output:

There you have it we successfully created How to Remove Odd Indexed Characters in a String in Python. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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