upgrade umobj to use progressbar2
progressbar has been abandoned and will not be updated to support python 3. Luckily, https://github.com/WoLpH/python-progressbar has been created, which does.
The adaptations to the code are minimal. The import is the same, the ProgressBar class name is unchanged. The only API adaptation was changing the maxval kwarg to max_value.
There are additional widgets available in the module. There is one that does file transfer speed, which is quite nice that we could use.
If we do this, I will need to package python-progressbar2 as an RPM. I tested this out and it was not that bad. It will need to "Obsolete" the old package though.