Function check_code

barcode/codex.py:29–39

(code: str, name: str, allowed: Collection[str])

def check_code(code: str, name: str, allowed: Collection[str]) -> None:
    wrong = []
    for char in code:
        if char not in allowed:
            wrong.append(char)
    if wrong:
        raise IllegalCharacterError(
            "The following characters are not valid for {name}: {wrong}".format(
                name=name, wrong=", ".join(wrong)
            )
        )


class Code39(Barcode):