title: Why my jupyter doesn't have run cell option?
body: <p>I want to run a python file in Jupyter notebook to see a plot from matplotlib.pyplot in the code. The file is already in the list in home. When I opened the file, it had only 4 options -- File, Edit, View, Language. What's wrong here? This is Windows 8. I can open Jupyter by jupyter notebook in cmd. It is opend in localhost:8888 with tree?token=somenumber successfully.</p>