Question

How to check if a string contains only letters and numbers using RegEx in Python

Answer 1

import re

def is_alphanumeric(string):
    # Define the regular expression for alphanumeric characters
    alphanumeric_regex = r"^[a-zA-Z0-9]+$"
    
    # Use re.fullmatch to check if the string matches the pattern
    return bool(re.fullmatch(alphanumeric_regex, string))

# Define the string to check
string = "VuZ3q7J4wo35Pi"

if is_alphanumeric(string):
    print("The string contains only letters and numbers.")
else:
    print("The string contains characters other than letters and numbers.")




'''
run:

The string contains only letters and numbers.

'''

 

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