We are getting closer - thanks!Wow, that's a whole lot "newer" version than either I am using or that solo-cli was written for.
Just a quick comparison between the 2 client.py modules and they are very different.
As a first step I'd try uninstalling 2.3.1 and installing 1.15.0 or 1.16.0.
This may effect the operation of your PC so proceed with caution.
You might also review the versions of the remaining libs in requirements.txt
I uninstalled paramiko and tried to install pip install paramiko==1.15.0
The build fails with the following error:
What version is your crypto lib and how can I install it?