Backup to Google Cloud Bucket broken?

Backup to GC bucket has been working fine for a while, but not anymore. I’m getting the following error: "Attempt of list Nr. 1 failed. ModuleNotFoundError: No module named ‘boto3’ ". MIAB tries five times and then gives up. Any help?

This probably has something to do with an upgrade to duplicity that also affects people using Amazon. Try searching the forums and GitHub for boto3 (I’m not affected by this, so can’t’ help much).