isalnum() function in Python programming language checks whether all the characters in a given string is alphanumeric or not.
Alphanumeric:A character that is either a letter or a number
Syntax:
string_name.isalnum()
string_name is the name of the string
Parameter: isalnum() method takes no parameters
Return:
True: If all the characters are alphanumeric
False: If one or more characters are not alphanumeric
Below is the Python implementation of the isalnum() method
# Python program to demonstrate the use of # isalnum() method # here a,b and c are characters and 1,2 and 3 # are numbers string = "abc123"print(string.isalnum()) # here a,b and c are characters and 1,2 and 3 # are numbers but space is not a alphanumeric # character string = "abc 123" print(string.isalnum()) |
Output:
True False
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