1进入安装jupyter的环境下

2依次执行：

pip uninstall jupyter -y
pip uninstall jupyter_core -y
pip uninstall jupyter-client -y
pip uninstall jupyter-console -y
pip uninstall notebook -y
pip uninstall qtconsole -y
pip uninstall nbconvert -y
pip uninstall nbformat -y

1进入安装jupyter的环境下

2依次执行：

pip uninstall jupyter -y
pip uninstall jupyter_core -y
pip uninstall jupyter-client -y
pip uninstall jupyter-console -y
pip uninstall notebook -y
pip uninstall qtconsole -y
pip uninstall nbconvert -y
pip uninstall nbformat -y