Comment 1 for bug 1116302

I ran into this same issue - looks like we need to catch gnomekeyring.IOError in additional to what we are doing already

some other folks have faced this too ("Non-root user cannot access keyring unless in X Windows")
https://bitbucket.org/Mekk/mercurial_keyring/issue/6/non-root-user-cannot-access-keyring-unless