Python isalnum is one of the String Methods used to check whether the given character is either an alphabet or a numeric value. In this section, we discuss how to write Python isalnum Function with example and the syntax is
Program to Check for Digit, or alphabet using Python isalnum
First, we declared the String variable Str1 and assigned Integer Value using the following Str1 statement. Next, we used it to check whether the string is alphanumeric or not. As you can see, it is a digit, so the function returns TRUE.
For Str5, we are using the isdigit function on both digits and alphabets.
Str1 = '123456789'; print('First Output of a method is = ', Str1.isalnum()) Str2 = ' '; print('Output of a method For Empty Space is = ', Str1.isalnum()) # Performing on Alphabets Str3 = 'TutorialGateway'.isalnum() print('Second Output is = ', Str3) # Performing on both Digits and Alphabets Str5 = '1239abcd'.isalnum() print('Third Output is = ', Str5) # Performing on Float values Str6 = '1234.67'.isalnum() print('Fourth Output is = ', Str6) # Performing on Negative Values Str7 = '-1234'.isalnum() print('Fifth Output is = ', Str7)