I'm also seeing this error installing from a dev build of spglib, thanks for catching this:

>>> print(spglib.__version__)
2.5.1.dev28+gf0db532

        try:
>           version_pieces = [int(_) for _ in version.split(".")]
E           ValueError: invalid literal for int() with base 10: 'dev28+gf0db532'

Hi @DanielYang59!

Thanks for the report. I'll do a new release including a more robust version check and further changes early January. For now, you could use my PR branch #107 and do a rebase. I just tested it and you shouldn't get that error anymore.

Hi thanks for your quick response and the fix, in fact I'm not really using the dev build in production, just trying to provide some info in case it's helpful :)