Initial creator of autojump here: just use zoxide. I passed autojump mainternship to someone else a few years ago but it has now been abandoned. Rust is superior to python for this application anyway.
I've been a happy user of autojimp for many years, and just made the switch to Zoxide last week because it's maintained. I feel vindicated now :)
Here's the command I ran on macOS:
zoxide import --from=autojump ~/Library/autojump/autojump.txt