Python String isalnum() MethodPython Functions


The isalnum() method detects whether a string consists of only letters and numbers.

Example

#!/usr/bin/python3
# -*- coding: UTF-8 -*-

# include spaces
str1 = 'Happy Brithday to you'

# include specific character
str2 = 'Walmart#'

# include letters and number
str3 = 'ABCDabcd123'

print (str1.isalnum())
print (str2.isalnum())
print (str3.isalnum())

Output:

False
False
True

Syntax

str.isalnum()

Parameters

The method doesn’t take any parameters.

Return Value

It returns True and False, depending on whether the string is alphanumeric.

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