Comment 1 for bug 1402632

I'm not seeing that over in my environment with a clean install of glanceclient from pip. What happens if you do:

    $ glance --os-image-api-version 2 image-list

or:

    $ glance --os-image-api-version 1 image-list

The error you're seeing should appear when glanceclient has failed to import the relevant versioned module.