Setting pythonpath on Jupyter notebook

Question

I want to add a permanent PYTHONPATH using Jupyter Notebook to be able to access the data from a particular directory or folder. I have read that we could use JUPYTER_PATH for it.

Could someone tell me a step wise instruction on how to do it. I am new to it and the documentation was not very clear.

For example sake lets say my path is as follows: C:\ENG\Fin_trade\ION

I have same issue and summary on stackoverflow.com/a/40158616/2224000 — Jesse
– Jesse, Commented Aug 5, 2019 at 3:39

Oppy · Accepted Answer · 2018-03-30 19:22:32Z

6

For a script that needs to reference your directory, you can do the following.

Say you have the file foo.py containing the class Foo in your directory C:\ENG\Fin_trade\ION

import os
import sys

new_path = r'C:\ENG\Fin_trade\ION'
sys.path.append(new_path)

import foo

Foo()

answered Mar 30, 2018 at 19:22

Oppy

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3 Comments

SteveWithamDuplicate Over a year ago

Here you seem to be giving a piece of code to run inside each notebook. Sinto asks how "to add a permanent PYTHONPATH", meaning, as I read it, put it in the path before any code inside a Jupyter notebook is run. Is there a configuration file where we should put your code snippet to have this effect?

Oppy Over a year ago

Each operating system has its own method of udating environment variables. You need to search for a solution for the particular OS that you use.

Yael Ben-Haim Over a year ago

This answer does not always work. If inside the package foo there is a call to a method that's in ION then that method will not be found. As for setting the environment variable PYTHONPATH, this requires launching Jupyter again.

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