Using pydev with Eclipse on OSX

Question

I setup PyDev with this path for the python interpreter /System/Library/Frameworks/Python.framework/Versions/2.5/Python since the one under /usr/bin were alias and Eclipse won\'

Answer 1

I believe ${resource_loc} or ${container_loc} (without any argument) are based on the current selection in your workbench when you are launching your script.

So are you selecting the right resource when selecting that script through the "external tool" runner ?
At least, click on the project name before you run one of the external programs.
Note: it works with a selection in the Navigator or Package Explorers views (the latest might not be available in PyDev environment though)