Whats the shortcut to Debug in PyDev using Eclipse

Question

The shortcut key is F11 to start debugging. But issue is that I have to be on that file and then hit F11 to start debugging. Eg.

my file to launch the application is "launch.py" and "example.py".
example.py is open in the editor whereas launch.py is not.
Now, if I hit F11 it will try to launch the application using "example.py" and terminates due to error (as expected).

So then I have to open the "launch.py" in the editor and then hit F11 to start debugging the application.
Is there any neater way to configure the debugging, so that it starts the application in single hit/key?

Edit: example.py is some other file (some module). It does not launch the application.

Answer 1

As this PyDev Eclipse Tutorial suggests:

After the first run, if you type Ctrl+F11, the last file ran is re-run. Or, if you type just F11, a debug session is started with your last run. Let's test this...

Note: This behavior changed in Eclipse 3.3 -- but it's generally recommended to restore it in the preferences at: window > preferences > Run/Debug > Launching and set the Launch Operation to Always launch the previously launched application.
This tutorial will always consider this as the default option.

So, did you have this option selected?
If you have launch at least once launch.py, then you can re-launch it easily.