如何设置Jupyter笔记本的来源

Question

I've just bought a new computer, and can't remember/don't know how I had Jupyter notebooks set up on my old machine. Specifically, how do you tell Jupyter about sources.
If I have a conda environment called django, and I do source activate django followed by jupyter notebook , I end up with a notebook, but then when I do from django.http import HttpResponse I get the error message

ModuleNotFoundError: No module named 'django'

Which is bizarre (I think), because Django is definitely installed in the Django environment.

How do I set up my Jupyter notebooks so that they know about the various sources that I want them to know about?

Answer 1

It is very likely your conda environment django doesn't have iPython Kernel installed which jupyter notebook needs. You can run jupyter notebook without activating a conda environment as notebook allows you to select any conda environment with ipykernel installed.

Try:

1. run in terminal : source activate django
2. run in terminal : conda install ipykernel
3. run in terminal : source deactivate
4. run in terminal : jupyter notebook
5. select django for your kernel

Answer 2

I create a kernel for each of my virtual environments. On MacOS Jupyter kernels are located here $HOME/Library/Jupyter/kernels . Make sure ipykernel is installed in your virtual env.

So $HOME/Library/Jupyter/kernels/myenv/kernel.json looks like:

{
 "env": { "VIRTUAL_ENV": "/Users/<User>/<myenv>" },
 "argv": [ "/Users/<User>/<myenv>/bin/python3", "-m", "ipykernel", "-f", "{connection_file}" ],
 "display_name": "My Virtual Env",
 "language": "python"
}

Answer 3

Found the answer here .

source activate django
conda install ipykernal
python -m ipykernel install --user --name django --display-name "Python (Django)"