Python Program to accept string ending with alphanumeric character

Python Server Side Programming Programming

When it is required to check if a string ends with an alphanumeric character or not, the regular expression is used. A method is defined that checks to see an alphanumeric characters, and returns the string as output.

Example

Below is a demonstration of the same

import re

regex_expression = '[a-zA-z0-9]$'

def check_string(my_string):

   if(re.search(regex_expression, my_string)):
      print("The string ends with alphanumeric character")

   else:
      print("The string doesnot end with alphanumeric character")


my_string_1 = "Python@"
print("The string is :")
print(my_string_1)
check_string(my_string_1)

my_string_2 = "Python1245"
print("\nThe string is :")
print(my_string_2)
check_string(my_string_2)

Output

The string is :
Python@
The string doesn’t end with alphanumeric character
The string is :
Python1245
The string ends with alphanumeric character

Explanation

The required packages are imported.
A regular expression string is defined.
A method named ‘check_string’ is defined, and it takes the string as a parameter.
The ‘search’ method is called and checked to see if a string ends with a specific character.
Outside the method, the string is defined and displayed on the console.
The method is called by passing this string.
The output is displayed on the console.

AmitDiwan

Published on 20-Sep-2021 10:41:24

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