Question 1: In the use of Jupyter, the package has been installed in the environment, but the import package reports an error No module named 'torch' or other package names
The reason is that the virtual environment established by conda is not used correctly
Just add the established virtual environment to jupyter:
python -m ipykernel install --user --name AI_3.8 --display-name "Python AI_3.8"
View kernel commands
jupyter kernelspec list
Uninstall the specified kernel command (kernel_name is the name of the kernel to be uninstalled)
jupyter kernelspec remove kernel_name
Question 2: How to change the default opening path
Just installed jupyter default directory is the user directory
Step1 generate configuration file
jupyter notebook --generate-config
Step2 Open the file with vim
vim .jupyter/jupyter_notebook_config.py
Step3 Find the location of the configuration default directory
Do not press i to enter insert mode, enter /notebook.dir to find the corresponding location
Step4 delete the comment symbol in front of the new line
Step5 Modify the path to the path you need, then exit and save
Question 3 How to automatically load the conda virtual environment to the jupyter kernel
(base)$ conda install nb_conda_kernels
(base)$ conda create --name new-env
(base)$ conda activate new-env
(new-env)$ conda install ipykernel