linuxbasic

class GTIN:
    MULTIPLIERS = [3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3]
    CODE_LENGTH = 14

    def __init__(self, gtin: str):
        self.original = gtin
        self.normalized = [int(char) for char in ('0' * (self.CODE_LENGTH - len(gtin)) + str(gtin))]
        if not self.is_valid():
            raise ValueError("not a valid gtin")

linuxbasic

Keybase proof

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• I am linuxbasic on github.
• I am linuxbasic (https://keybase.io/linuxbasic) on keybase.
• I have a public key whose fingerprint is 81CC F3C7 E409 6B6D 2A45 59DC 0E57 CF2F 7F13 7210

To claim this, I am signing this object:

linuxbasic

Keybase proof

I hereby claim:

• I am linuxbasic on github.
• I am linuxbasic (https://keybase.io/linuxbasic)