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# Python2.x Python isalnum() Method [ Python Strings](#) * * * ## Description The Python isalnum() method checks whether all characters in the string are alphanumeric (either alphabets or numbers). ## Syntax The syntax for the isalnum() method is: str.isalnum() ## Parameters * None. ## Return Value Returns True if all characters in the string are alphanumeric and there is at least one character, otherwise returns False. ## Example The following examples demonstrate the usage of the isalnum() method: ## Example (Python 2.0+) #!/usr/bin/python# -*- coding: UTF-8 -*-str = "this2009"; # No space in the string print str.isalnum(); str = "this is string example....wow!!!"; print str.isalnum(); The output of the above example is: TrueFalse * * Python Strings](#)