Better way to validate barcode data?

[SeaDude]

Hello,

Should I validate barcode data manually or is there a simple way using the library?

Example:

• ean13 codes must be 12 numeric digits or jan codes must start with 45 or 49.

• I only found this out by testing the

  • barcode.ean.EuropeanArticleNumber13(barcode_data, writer=SVGWriter()).write(barcode_bytes) and
  • barcode.ean.JapanArticleNumber(barcode_data, writer=SVGWriter()).write(barcode_bytes) functions

• Is there a "cheat sheet" of all the barcode requirements so I can roll-my-own validation? OR

• Is there a better way to validate using the library itself?

Thank you!

[WhyNotHugo]

Some barcodes validate the provided input. For example: https://github.com/WhyNotHugo/python-barcode/blob/962754e0de08821bd20e980aa79e5f692023b6c6/barcode/ean.py#L44-L54

Some have validation, others don't. If you have a snippet of code to validate any barcode that's missing a validation, I'm happy to include that.