I have pylint installed (works fine on the command line) and set up within Pydev in Eclipse.
Pylint is being triggered OK when I edit files, and is outputting to the Ecl
I had this exact problem today, on a brand new system. I tracked down the cause, and it seems that PyDev refuses to pick up the messages from pylint 0.24.0, which was released on July 20, 2011.
Reverting to the previous version (pylint 0.23.0) seems to have solved the problem. For me, that involved removing everything from Python's Lib/site-packages
directory that was related to pylint, and then running python setup.py install
from the directory I'd extracted pylint 0.23.0 into. (Without deleting those files in the site-packages directory first, it kept using the new version.) But after both those steps, the messages started showing up in PyDev as expected.
You can check your pylint version with pylint --version
from a shell prompt; if it shows 0.23.0 you're good to go.