Comment 3 for bug 1381616

The error message refers to the fact that recent versions of the python-keyring library directly clash with GTK2, so both cannot be used at the same time. I solved this some time ago by bundling an older version of python-keyring with Polly. However, this bundled version is not being used in your installation, I'm not sure why.

I cannot test this myself since I don't have 14.10 installed. Once I do (no predictions on when I'll have the free time to install it), I might get some more info.