问题 When i am starting jupyter notebook from cmd prompt i get following error C:\Users\Ganesh>jupyter notebook Traceback (most recent call last): File "C:\ProgramData\Anaconda3\Scripts\jupyter-notebook-script.py", line 6, in <module> from notebook.notebookapp import main File "C:\ProgramData\Anaconda3\lib\site-packages\notebook\notebookapp.py", line 46, in <module> from zmq.eventloop import ioloop File "C:\ProgramData\Anaconda3\lib\site-packages\zmq\__init__.py", line 47, in <module> from zmq