>>henghe+D3
I did VI for over 10 years, and now I tried IntelliJ Python integration, and my rate of making stupid errors and wasting valuable time has gone down dramatically. Lightning-fast navigation across files, actually working autocomplete, live code style analysis. To be fair, I tried it before and was unimpressed, but in come cases, modern IDE's are becoming superior. And note that it's out of the box - setting up and trying different plugins just seems annoying in the least.