This tutorial shows how you can run your Plasmoids from within Eclipse.

Create an external tool "plasmoidviewer" from the menu:

Run -> External Tools -> External Tools Configurations

Mark "Program" and press the "New" button.

Name the tool "plasmoidviewer" and insert absolute path to the binary underneath "Location":

/usr/bin/plasmoidviewer

Under "Working Directory" enter Eclipse variable ${resource_loc}

In order to run the Plasmoid from within Eclipse, mark the directory with the Plasmoid in the project tree list. Then choose: Run -> External Tools -> plasmoidviewer.

Voilá your Python Plasmoid should run from within the Eclipse environment