Version: (using Devel) OS: MS Windows Installed from: Compiled sources if you do an svn up and by chance a package gets renamed which has been build already (so that a .pyc file exists in the directory) emerge might still think that the package is installed. If it doesn't find a .py file in there, it reports the package as missing even though it most probably is within the portage tree.
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.