This is because the nassl package, a dependency of sslyze, is only compatible with python 3.9 as of version 4.0, but we are constrained to use version 2.2.0 because the version of sslyze we have pinned requires it. And we cannot upgrade sslyze until we upgrade pshtt, which is tracked at the above ticket.
Currently blocked by https://github.com/freedomofpress/fpf-www-projects/issues/150
This is because the nassl package, a dependency of sslyze, is only compatible with python 3.9 as of version 4.0, but we are constrained to use version 2.2.0 because the version of sslyze we have pinned requires it. And we cannot upgrade sslyze until we upgrade pshtt, which is tracked at the above ticket.