So far I couldn’t even get the Python package for plotly load within a JSR223 Python rule…
2019-07-11 17:56:20.479 [ERROR] [ipt.internal.ScriptEngineManagerImpl] - Error during evaluation of script ‘file:/etc/openhab2/automation/jsr223/python/personal/owm.py’: ImportError: No module named plotly in <script> at line number 12
And I have both Python2 and Python3 versions of plotly installed.