I just installed PyDev to run python scripts from eclipse. I have a Java project which has a python script that I want to run. I am in PyDev perspective (did the following: Windows -> Perspective -> Open PErspective -> Other -> Pydev -> Ok). But when I right click on the python script it doesn't show me the "Python Run" option (shown in below image). How to run that script?
Maybe the issue is that you're not configuring the project as a PyDev project... See: http://www.pydev.org/manual_101_root.html for more details on how to configure a project.
As a note, you should be using the "PyDev package explorer view" and not the plain "Navigator view" (valid modules should have a different icon there so it's easy to differentiate from a file in a configured project vs file in a project that's not configured).