MarsSeed [1] filed a deletion request for python-zipline [2]: Development of this module and the company behind it has been shut down during 2020-2021, as per last user comment elaborated.
Also fails to work with current Python version. Not useful to keep this package. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-zipline/
