How to check if a string is composed only of alphanumeric in Python? Subash Chandran 17th October 2021 Leave a Comment String.isalnum() Curly hair, very fair, please share 🙂Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to email a link to a friend (Opens in new window) Related See also How to return a value from a function in Python? Snippets check if a word is non alphanumeric in python, check if character is alphanumeric python, how to check if a string only contains alphanumeric characters in python, python check alphanumeric character, python check if char is alphanumeric, python check if character is alphanumeric, python check if string contains alphanumeric, python see if string only alphanumeric Change font size A Decrease font size. A Reset font size. A Increase font size.