Comment (by Roland Haas):

on the other hand, the downloads page says "# requires Python3 version 3.7 or greater" while the release description file on Zenodo (https://zenodo.org/records/21298233) says "assumes Python3 version 3.6.1 or greater".

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2963/et-website-inconsistency-on-kuibit-version