xlcnd

There are a lot of 'bad' ISBNs in databases and catalogues, usually because of an error in the printing of a book, errors in applying the hyphenation rules, and even...

Thanks. It's in my todo list to change to pytest, however I had to find the time to reconfigure my local dev env first! This applies to `isbntools` too.

Anyway, the library **can be used** with python 3.10!