If you can write your whole program in Python and just pay a bit more attention to the one speed critical bit, you can often get perfectly decent performance (l

If you can write your whole program in Python and just pay a bit more attention to the one speed critical bit, you can often get perfectly decent performance (let's say takes 20% longer than writing the whole thing natively, to just make up a number, or even 100% longer may be acceptable) while taking much much less effort to write an maintain the whole thing (I mean like an order of magnitude less effort).