Run_notebook.py gets hanged

Hi,

I am trying to run 01_matmul notebook. I was trying to run !python run_notebook.py 01_matmul.ipynb as a cell in Jupyter notebook and in command line. It gets hanged when the test passes say test_eq(3,3) . But it completes when I change the values to test_eq(3,4) . It also works for test_eq(TEST,'test')

To debug more I tried running the code in run_notebook.py in a notebook. The below line ExecutePreprocessor(timeout=600).preprocess(nb, {}) is where the program gets stuck. Any suggestions on what I can look.

Thanks,
Vishnu

Is this still causing you problems?