Virtual Environment

tip

Always create a virtaul environment .venv inside of the project folder. And, don't add any source code inside the .venv folder.

Create an virtual environment

Create a project folder

mkdir my-project
cd my-project

Create virtual environment inside a project folder

Python virtualenv is built into Python, other tools are Conda, pipenv, Poetry for creating virtual environments.

# Here .venv is the name of the virtual environment
python -m venv .venv

Activate virtual environment

.venv\Scripts\activate.bat

.venv\Scripts\activate.ps1

De-activate virtual environment

deactivate

PIP command => Preferred Installer Program

# To see installed packages
pip list 

# To install packges
pip install requests 

To save list of packages installed in the project

pip freeze > requirements.txt

To install packages from the file

pip install -r requirements.txt