MarsSeed [1] filed a deletion request for python-blist [2]: EOL since 2014 [a], fails to build with gcc 11+, as reported in comment in 2023. No longer actually needed by any package.
[a]: https://pypi.org/project/blist [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-blist/
