How to install and choose a Jupyter kernel

Install the kernel

To run Jupyter notebooks, you need to add a Jupyter kernel in every conda environment that you create.

1. Activate your conda environment (if it is not).

2. Then, type the following, choosing your own <name> (this name can be different from your conda env name):

    conda install ipykernel -y && ipython kernel install --user --name "<name>"
   

3. You can list your installed Jupyter kernels considering:

    ls /home/<username>/.local/share/jupyter/kernels
   

   or

    jupyter kernelspec list
   

4. Refresh your page to update the changes on the screen.

Choose the kernel

1. Open a Jupyter notebook file and click on the kernel button. Refer to Fig. 1, top-right. In this example, the kernel button reads Python 3 (ipykernel).

   

   Fig. 1.

2. A box opens listing all your kernels. Choose the one that you want to work with. In Fig. 2, for example, we choose pytorch-mnist.

   

   Fig. 2.

3. As shown in Fig. 3, top-right, the kernel button now shows pytorch-mnist. With this, you are ready to work with it.

   

   Fig. 3.