[0xCMP]

We run python at work and I have to agree with this however with Python 3 and ASGI servers now existing this should be significantly less of an issue. Even just Python 3 WSGI using Gunicorn + gevent should be fairly performant for Python.

There is no way around the high memory usage, but a large number of the problems with Python concurrency is not loading nginx (or load balancer) in front and not switching to gevent from PreFork which uses a considerably higher amount of memory per “node” for higher concurrency. That said, gevent is only "performant" if what you’re doing is IO bound. Same thing with any AsyncIO based server.

"data science" sounds like DB or NoSQL heavy so should fit this case, but of course all of this is just general advice and depends on the app/code like others said.