how to add menu item in folder right click that calls python script

Question

how to add a menu item to any folder right click in windows explorer that passes the selected folder as argument to the python script ?

I have written a tool in python that takes the folder path as argument and do the slideshow of the images in that folder, for which I want to do this.

Answer 1

Open regedit and create a new key in HKEY_CLASSES_ROOT\Directory\shell with name Slideshow and modify value of Default (by right clicking on it in right pane) to Start slideshow.

Then you need to create another key in HKEY_CLASSES_ROOT\Directory\shell\Slideshow with name command. Modify Default value similarly to myscript.py %1.