LibStatefulWorkspace

Follow these steps:

1. Create a file called requirements-custom.txt in the /mnt/code folder
2. You will be installing libraries in the folder /mnt/code/python/libraries
3. In the .gitignore file specify that it ignore the folder and the sub-folders of /mnt/code/python

Create a new Environment to install the libraries

You will need to add the following pre-run script in the Environment definition

#!/bin/bash
set -e
TARGET_PATH=/mnt/code/python/libraries
mkdir -p $TARGET_PATH
pip install --upgrade --target $TARGET_PATH -r /mnt/code/requirements-custom.txt
echo "Packages installed to $TARGET_PATH and PYTHONPATH updated."

In the .gitignore file exclude the library folder

Add the folloing line at the end of your .gitignore file and commit the code

python/*/*

Making the workspace aware of the new path

You can either update the PYTHONPATH to include the new path /mnt/code/python/libraries

export PYTHONPATH=/mnt/code/python/libraries

or you can explicitly add the path via code

import sys
sys.path.append("/mnt/code/python/libraries")

All Set

Your custom libraries will now survive workspace restarts

But what if I am using Domino File System

Everything remains intact. Except use the file /mnt/.dominoignore instead /mnt/code/.gitignore And the relevant lines in the file are

code/python/

I made the simplification to use the path /mnt/code/requirements-custom.txt instead of /mnt/requirements-custom.txt. That was so I could use the same Domino Environment above. You can use the latter and make the appropriate changes to the pre-run script

set -e
TARGET_PATH=/mnt/code/python/libraries
mkdir -p $TARGET_PATH
pip install --upgrade --target $TARGET_PATH -r /mnt/requirements-custom.txt
echo "Packages installed to $TARGET_PATH and PYTHONPATH updated."

or even

set -e
TARGET_PATH=/mnt/python/libraries
mkdir -p $TARGET_PATH
pip install --upgrade --target $TARGET_PATH -r /mnt/requirements-custom.txt
echo "Packages installed to $TARGET_PATH and PYTHONPATH updated."

and use the following line in the .dominoignore

python/