I also experienced this today. Same versions. Marking Confirmed, setting Importance to Critical, as checkbox-cli is completely inoperable at the moment.
This appears to be a python 2.7 problem, so tagging python2.7
I also experienced this today. Same versions. Marking Confirmed, setting Importance to Critical, as checkbox-cli is completely inoperable at the moment.
This appears to be a python 2.7 problem, so tagging python2.7