Thanh's note:

To be able to run python repo locally

Create a virtual environment: This is the recommended approach. It isolates your project dependencies from the system Python.

python3 -m venv env
source env/bin/activate

After activating the virtual environment, your terminal prompt should change to indicate that the virtual environment is active.

Install packages in the virtual environment: Once the virtual environment is activated, you can install packages without the externally-managed-environment error:

pip install pymongo Flask pandas scikit-learn

Start to run repo

python3 main.py

To stop running python system

deactivate