An asterisk on Jupyter cell means that cell is still waiting to run. Please check the preceding cells to see the one that is currently running. It is possible you may have an error on one of the previous cell. Also if you see a dark circle on the top right
of the browser it means a cell is still executing. A clear circle means it is idle.
Marked as answer byGopi Kumar (MSFT)Monday, October 23, 2017 7:54 PM