def check_file_name_validity()

in src/mapillary/utils/verify.py [0:0]

• 12 lines of code
• 5 McCabe index (conditional complexity)

def check_file_name_validity(file_name: str) -> bool:
    """
    Checks if the file name is valid

    Valid file names are,

    - Without extensions
    - Without special characters
    - A-Z, a-z, 0-9, _, -

    :param file_name: The file name to be checked
    :type file_name: str

    :return: True if the file name is valid, else False
    :rtype: bool
    """

    string_check = re.compile("[@.!#$%^&*()<>?/}{~:]")  # noqa: W605
    if (
        # File name characters are not all ASCII
        not all(ord(c) < 128 for c in file_name)
        # File name characters contain special characters or extensions
        or string_check.search(file_name)
    ):
        print(
            f"File name: {file_name} is not valid. Please use only letters, numbers, dashes,"
            f" and underscores. \nDefaulting to: mapillary_CURRENT_UNIX_TIMESTAMP_"
        )
        return False
    return True