pyswmm 2.0.1 breaking change

[abhiramm7]

pyswmms's state manager prevents pystorms from opening multiple simulations in jupyter-lab

[gregjewi]

@abhiramm7, I've had a similar, maybe related, issue.

I have a Dash/Plotly app that can launch pystorm simulations. What I have found is that I cannot run the pystorms scenarios when using a python virtual environment (conda-based venv -- I haven't checked using standard library venv.) The only way I can run the app is if I launch the Dash app from the base env. I can provide you with the exact exception, but it says I can't have multiple simulations open at once.

[abhiramm7]

yeah, I think it is! Can you share the exception? I have a patch to get over the multi-simulation issue. I will push it in and release a new version. Just want to make if there isn't an other bug.