Source code for kyu_5.not_very_secure.alphanumeric

"""
Solution for -> Not very secure.

Created by Egor Kostan.
GitHub: https://github.com/ikostan
"""




def alphanumeric(password: str) -> bool:
    """
    Alphanumeric function.

    The string has the following conditions to be alphanumeric:
    1. At least one character ("" is not valid)
    2. Allowed characters are uppercase or
    lowercase latin letters and digits from 0 to 9
    3. No whitespaces or underscore
    :param password: string
    :return: bool
    """
    if not password:
        return False

    for char in password:
        if char.isalpha() or char.isdigit():
            continue
        return False

    return True