Official documentation for the project and all of its features is hosted at:
https://pantab.readthedocs.io/en/latest/index.html
If you'd like to chat with the developer(s) or other users in the community, freel free to join the Hyper API slack channel.
pantab is distributed under the 3-Clause BSD license, but includes vendored pieces of numpy (see numpy_datetime.* files). Binary distributions of pantab include the Tableau Hyper shared library and executable. See LICENSE.txt, NUMPY_LICENSE.txt and TABLEAU_HYPER_LICENSE.txt respectively.