Approximating PyCharm on Vim.
See this blog post for details.
N.B: Simply copy-pasting the .vimrc will not work since some maps involve character sequences that won't be escaped properly if you simply copy-paste
Ctrl + /to comment/uncomment lines
Alt + 1to toggle NERDTree
Ctrl + Left clickor
Ctrl + bto go to definition
Alt + minusto jump to previous location.
Alt + _to jump foward
Ctrl + ofor fuzzy file search
Alt + fto search the entire codebase
Ctlr + fto search the current file
F12to bring up a terminal
F6to rename the method/variable under the cursor