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
You may try Pydiction (Excerpt below)
Description Pydiction allows you to Tab-complete Python code in Vim, including: standard, custom and third-party modules and packages. Plus keywords, built-ins, and string literals.