Jupyter notebook/lab switch CONDA environment

stay jupyter in , We often have different switches conda Environmental needs , Here is a summary of the required steps .

Before that, first answer a question I had doubts about ：
Need to be in every conda Installed in all environments jupyter Do you ？ The answer is no need for , Just in base Installation in the environment jupyter, In the rest of the environment, only ipykernel Can .

Here are the steps , before this ,base The environment should already have jupter.

1. Activate the corresponding environment

 conda activate EnvName  

2. Install in the corresponding environment ipykernel

conda install  ipykernel

3. take Environmental Science Write to notebook in

python -m ipykernel install --user --name EnvName --display-name "EnvName"

4. stay base Restart in the environment jupyter notebook Background services

conda deactivate

#  go back to  base  Environmental Science ：
conda activate base

#  restart  jupyter  service ：
jupyter notebook --allow-root --config=jupyter_notebook_config.py

Now the newly opened notebook You can see the environment selection in .