[UMetaGOMS]

Last year sometime - I'm about due another look.

Main problems were cryptic errors in the REPL, super slow start-up and first run times (JIT issue I seem to recall reading was being improved), and a generally very poor third-party package management system.

On the last issue, I'd say Python is not perfect but pip and various virtualenv management systems are "good enough". Having something like the Rust/Cargo setup is what I would prefer.

[adamnemecek]

It has gotten a lot better I think.