Getting proper code completion for Python on Vim?

Question

I\'ve gotten omnicompletion with Pysmell to work before, but I can\'t seem to do it again.

I tried following some steps online, but most, if not all, of them are to

Answer 1

There's also Ctrl+n in insert mode which will autocomplete based on the words it has seen in any of the open buffers (even in other tabs).