How to switch to python 2.7 from python 3- jupyter notebook

问题

I am running a Jupyter notebook instance and it has both python 2 and python 3 kernels. However, when i use the python 2 kernel and execute below statements,

import sys
sys.executable

I get python 3 path

'/usr/bin/python3.4'

How do i force it to use python 2.7

回答1:

Re-installing Jupyter with pip instead of pip3 is what worked

来源：https://stackoverflow.com/questions/45106616/how-to-switch-to-python-2-7-from-python-3-jupyter-notebook