Setting the interpreter fails when there is a space in the filename.
I get the error detail message
can't open file "/Applications/Applications/Adobe"
Where the path to my Eclipse (actually Flex Builder 2) installation is
/Applications/Applications/Adobe\ Flex\ Builder\ 2/Flex\ Builder.app
which is also the path to the extension directory.
This is under OSX using PyDev for Eclipse 1.3.9