Anaconda prompt closed suddenly after installing PyMc3 and warning in importing pymc3

Questions
4

Could you run your script as a batch script instead of a spyder dedicated terminal? That way, you will see the actual exception that is causing the BrokenPipeError. The most likely candidate is that you did not enclose the pm.sample inside an if __name__ == "__main__": statement.

Try rerunning with

if __name__ == "__main__":
    with basic_model:
        trace=pm.sample(5000)