How to Check if a String Ends with an Alphanumeric Character in Python

Submitted by razormist on Monday, March 10, 2025 - 23:49.

In this tutorial, we’ll learn how to program “How to Check if a String Ends with an Alphanumeric Character in Python.” The objective is to safely check whether a string ends with an alphanumeric character. This tutorial will guide you through the proper method for determining if a string ends with an alphanumeric character. So, let’s get started!

This topic is straightforward to understand. Just follow the instructions I provide, and you’ll complete it with ease. The program I’ll demonstrate will illustrate the correct way to check if a string ends with an alphanumeric character. 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.

import re
 
regex = '[a-zA-Z0-9]$'
        
def check_string(string): 
 
        if(re.search(regex, string)): 
                print("String Accepted!") 
                
        else: 
                print("String not Accepted!") 
        
if __name__ == '__main__' : 
        
        while True:
                
                print("\n============ Check if a String Ends with an Alphanumeric Character ============\n\n")
                my_string = input("Enter a string: ")
        
                check_string(my_string)
 
                opt = input("\nDo you want to try again?(yes/no): ")
 
                if opt.lower() == 'yes':
                        ret=False
                elif opt.lower() == 'no':
                        ret=True
                        print("Exiting program....")
                else:
                        print("Please enter yes/no:")
                        break
 
                if ret == False:
                        continue

This script repeatedly prompts the user for input and checks whether the entered string ends with a letter or number, printing 'String Accepted!' if it does and 'String not Accepted!' otherwise.

Output:

There you have it we successfully created How to Check if a String Ends with an Alphanumeric Character 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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How to Check if a String Ends with an Alphanumeric Character in Python

Getting Started:

Creating Main Function

Output:

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