Displays new mail count in IMAP mailboxes The password will be stored in the GNOME Keyring Please first check the following packages are installed: gnome-keyring python-keyring python-gnomekeyring python-gi Otherwise install these packages with the command: sudo apt-get install gnome-keyring python-keyring python-gnomekeyring python-gi Know issue with python-gi module comming from an installation using pip Please try: sudo -H pip uninstall gi sudo apt-get install --reinstall python-gi