On AWS instance, cwltool install leads to "error in rdflib-jsonld setup command: use_2to3 is invalid."

[lynnhlee]

Hi all.
I set up an AWS EC2 instance with the pipeline as you described in your guide. I ran into an error when I tried to install cwltools, as above: "error in rdflib-jsonld setup command: use_2to3 is invalid."

I solved this temporarily by downgrading setuptools (pip install --force-reinstall 'setuptools<58.0.0') but I figured there was some kind of dependency in the underlying code to be addressed.
thanks,
-Lynn