Is there a emacs plugin which lists all the methods in the module in a side pane. 
I am looking for a plugin which has keyboard shortcuts to show/hide all the methods in python module file currently opened.
For me, the easiest and most convenient method to quickly lookup methods is the command helm-occur (C-x c M-s o). You start typing the name of the method you want to jump to and suggestions start popping in as you type. Then you hit enter to select the one you want and your cursor jumps right there in the code. Helm-occur wasn't strictly written for this purpose, but works quite well that way.
Emacs plugin to list all methods in a python module