How to Remove Characters at Odd Indexes from String in Python

Submitted by razormist on Tuesday, September 9, 2025 - 23:49.

In this tutorial, we will learn how to program "How to Remove Characters at Odd Indexes from a String in Python." The objective is to identify the characters at odd indices and remove them. This tutorial will guide you step by step through the process of removing characters at odd indices. 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 be able to 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:   # keep only even-indexed characters
            final += string[i]
    return final
 
while True:
    print("\n============= Remove Characters at Odd Indexes from String =============\n")
    string = input("Enter string: ")   # use input() in Python 3
    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 at odd indexes from a string by keeping only even-indexed characters. It defines a `modify()` function that builds a new string with characters at positions `0, 2, 4, ...`. Inside a loop, the user enters a string, the modified result is displayed, and they are prompted to continue or exit.

Output:

There you have it we successfully created How to Remove Characters at Odd Indexes from 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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