Jupyter Notebook can't find modules for python 3.6

Try the following:

pip3 install ipykernel --upgrade
python3 -m ipykernel install --user

Make sure that Panda is installed using pip3.

I was having a similar issue. I installed a text processing tool using pip3. The installation was successful and I was able to run the test-code from the terminal, however I was unable to execute the same code from jupyter notebook. Checked that the sys.version was 3.7.1 in notebook but the terminal version was 3.6.9.

The problem was resolved after executing the following commands and relaunching the notebook:

pip3 install ipykernel --upgrade
python3 -m ipykernel install --user