Python 3.7: ModuleNotFoundError: No module named 'StringIO'

[tenkaisynapse]

when I do enip_client -P i get the following error:

enip_client -a 192.168.33.1 -v -P
Traceback (most recent call last): File "/usr/local/bin/enip_client", line 10, in sys.exit(main()) File "/usr/local/lib/python3.7/site-packages/cpppo/server/enip/client.py", line 1622, in main import StringIO ModuleNotFoundError: No module named 'StringIO'

might be related to this one? https://github.com/nahamsec/JSParser/issues/18