错误展示:

原因:

创建虚拟环境后,用conda install 了ipykenel,这里与我另一个环境中用python -m install 的ipykenel做一个对比,用python -m 安装的是可以正常运行jupyter notebook的:

1、在python3.6.0中用python -m 安装的,可以正常运行jupyter notebook

 

 

2、在python3.6.7用conda install 了ipykenel,报错的:

 版本相同,唯一的不同是安装方式。看到有人说要升级pykernel,遂进行尝试,仍旧报错,错误如下:

错误:ERROR: Cannot uninstall 'ipykernel'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

 既然错误中提示无法卸载原有版本ipykernel,遂尝试卸载conda 安装的ipykernel,重新安装;

conda uninstall ipykernel
python -m pip install ipykernel

具体界面如下:

 

 重新启动jupyter notebook,这次内核连接成功。

 

 

 

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