Introduction

The task is to check whether the string ends with alphanumeric charters or not.

Program

import re 
def check(ip_str):  
    re_exp = '[a-zA-z0-9]$'
    if(re.search(re_exp, ip_str)):  
        return "The string is ending with alphanumeric char!"  
          
    else:  
        return "The string does not ends with alphanumeric char!"      
      
ip_str = input("Enter the string: ")
print(check(ip_str))

Output

Explanation

In the above python code, the regular expression we have used is ‘[a-zA-Z0-9]$’. The symbol $ signifies the end with character. We have implied the expression on our input and checked whether it satisfies it or not and printed the output accordingly.