jupyter No module named 'd2l'

To resolve the issue of "No module named 'd2l'" in Jupyter Notebook, you can try the following steps:

1. Make sure you have the `d2l` package installed. You can install it using pip by running the following command in your terminal or Jupyter Notebook cell:

   !pip install d2l

2. If you already have `d2l` installed, it's possible that the Jupyter kernel you are using is not associated with the same Python environment where `d2l` is installed. In that case, you need to ensure that the Jupyter kernel is using the correct Python environment.

- You can check the list of available kernels by running the following command in your terminal:

     jupyter kernelspec list

- Once you identify the kernel you are using, you can install `d2l` within that specific kernel's environment. Activate the environment and then install `d2l` using pip:

     source activate <kernel_name>
     pip install d2l

- Restart Jupyter Notebook and try importing `d2l` again.

If the issue persists, please provide more details about your setup, such as the operating system, Python version, and any other relevant information.