Cannot import modules in jupyter notebook; wrong sys.path

Question

I am having a problem importing modules in my iPython/Jupyter notebook. The problem fundamentally lies in where the sys.path is pointing to.

From the iPython/Jupyte

Answer 1

My system is Mac. I came across the same problem.

I use my anaconda python installed the packages but my jupyter notebook is not using it and cannot import the modules. I solved the problem by following steps:

Step1: check the actual python path you used to install the packages

I run which python and it shows the default python I use to install packages:

➜  ~ which python
/Users/my_name/opt/anaconda3/bin/python

Step2: change the jupyter kernel's python path to the above path

I run jupyter kernelspec list, it shows 2 kernels my jupyter notebook can use:

Available kernels:
  python3    /Users/my_name/Library/Jupyter/kernels/python3
  python2    /usr/local/share/jupyter/kernels/python2

Since I usually use python3 in my jupyter, then I choose to edit the first kernel's configuration, run: vi /Users/my_name/Library/Jupyter/kernels/python3/kernel.json

replace the first path as "/Users/my_name/opt/anaconda3/bin/python"(as the which python command shows.)

{
 "argv": [
  "/Users/my_name/opt/anaconda3/bin/python",
  "-m",
  "ipykernel_launcher",
  "-f",
  "{connection_file}"
 ],
 "display_name": "heterodimers",
 "language": "python"
}

save and quit the kernel.json file.

After that, my jupyter notebook can import the packages I installed in the terminal.

And thanks to Mike's answers because I basically followed his solution to find mine. The difference is that I did not use the conda environment.