v0.5.0

🐛 Bugfixes

• Fixed a bug where ISBN-13 calculations allowed for a check digit of X, which shouldn't be possible. Thanks to @mohsenBanan for the bug report #171.

Full Changelog

Commits: v0.4.0...v0.5.0

v0.4.0

Please see the changelog.

v0.3.1

Please see the changelog.

v0.3.0

Compatability Broken: A single ISBN function is now available, rather than the two separate ones for ISBN-10 and ISBN-13. (#19 #63)

For the full changelog, please see here.

v0.2.0

Breaking change: Parity methods no longer return the full block of data, so as to match the other check digit methods. They instead return the missing bit.

Formats

• CRC Format Added (Thanks @sapieninja!)
• Refactored ISBN and Luhn code

Docs

• Revamped the README
• Move docs to RTD

Behind the scenes

• Transition tests from error404 to pytest
• Add the @all-contributors bot, to celebrate everyone's contributions!

v0.1.2

Adds GS1 capability, kindly submitted by @OtherBarry #38. 🎉

v0.1.1

checkdigit is now PEP 561 compatible! This means that it has been marked as supporting type checking.

The inline documentation has been updated, and the code quality has been improved as a result of additional testing.

v0.1

This is the biggest update of checkdigit yet. It clears up lots of redundant code and aims to improve things behind the scenes. This will help to improve future updates.

What's new?

Code

• Refactored various functions
• Docstrings and type-checking added

Please note that a lot of functions have been renamed. This is to help make things clearer both to the end user and in the code without having to make this change later on in development. If you were previously using this library, please see below for the name changes.

Please click on the title links for more info from the wiki.

ISBN

Original	New
isbn10calculate	calculate10
isbn10check	validate10
isbn13calculate	calculate13
isbn13check	validate13
calculate_missing	missing

Luhn

Original	New
luhn_calculate	calculate
luhn_validate	validate
luhn_missing	missing

Parity

A second parameter has been added indicating whether to use even parity or not.

Original	New
evenparity	calculate(data)
oddparity	calculate(data, false)

UPC

Original	New
upc_calculate	calculate
upc_check	validate

Documentation

• A Wiki has been created documenting how all the functions work with examples
• README updated

Tests

• Moved tests to error404
• Additional tests added
• Coverage report generated
• Moved from Travis CI to GitHub Actions

Other

• Moved to poetry for dependency management

v0.0.6-Alpha

Can now calculate a missing digit with the Luhn Algorithm

v0.0.5-Alpha

Support for Integers and Hyphens Added