[Python] Manage Dependencies with Python Virtual Environments

Virtual Environments ensure that dependencies from one Python application don’t overwrite the dependencies of another application. In this lesson, you will learn how to create a virtual environment, switch between virtual environments, and manage dependencies within a virtual environment.

Install:

pip install virtualenv

Create floder for a project:

mkdir my_project
cd my_project

Use virtual env to generate python env:

virtualenv py3 -p /usr/local/bin/python3

Tell to use python3. Then it will create py3 folder.

To activate the env:

source py3/bin/activate

To deactivate

deactivate

To share the dependiences:

pip freeze > requirements.txt
pip install -r requirements.txt

So other developers can use the same dependiences