> After you've optimised your python program and eliminated all hotspots, the python profiler isn't going to say 'hey, this could be still 10x faster if rewritt

> After you've optimised your python program and eliminated all hotspots, the python profiler isn't going to say 'hey, this could be still 10x faster if rewritten in go'. No it wont say something like that but if you profile Python itself and see that a lot of time is spent in Python you can get a hint that rewriting it in another language that doesn't have Python's overhead might help.