In addition to what the others said, I'll note that PyCharm is already doing these things and there isn't a multi-second lag between hitting a key and seeing th

In addition to what the others said, I'll note that PyCharm is already doing these things and there isn't a multi-second lag between hitting a key and seeing the completions. It is also doing type inference. And sure, there's a bit of lag when it needs to do a full index, but that shouldn't be often.