Not_very_secure.md

CodeWars Python Solutions

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Not very secure

In this example you have to validate if a user input string is alphanumeric. The given string is not nil/null/NULL/None, so you don't have to check that.

The string has the following conditions to be alphanumeric:

• At least one character ("" is not valid)
• Allowed characters are uppercase / lowercase latin letters and digits from 0 to 9
• No whitespaces / underscore

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Given Code

def alphanumeric(password):
    pass

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Solution 1

def alphanumeric(password):
    return " " not in password and len([c for c in password if c.isdigit() or c.isalpha()]) == len(password) and len(password) > 0

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Solution 2

def alphanumeric(string):
    return string.isalnum()

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