• venv,conda etc can be be used to create virtual environments
• Virtual environments allow you to manage dependencies for different projects separately

The activate file is just a shell script. When you run it, it does one main thing: it creates a new PATH variable by shoving the .venv folder to the very front of the list.

python3 -m venv myenv creates a virtual environment named myenv >source myenv/bin/activate activates the virtual environment deactivate deactivates the virtual environment pip freeze > requirements.txt saves the current environment’s packages to a file. pip install -r requirements.txt installs packages from a requirements file

• To remove a virtual environment, simply delete the directory containing it
• To create a virtual environment with specific Python version, use python3.x -m venv myenv where x is the minor version number.

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uv

• uv is a tool for managing Python virtual environments
• uv init --app initializes a new Python application. uv init --lib && uv init --package initializes a new Python library or package.
• uv run runs a Python script in the virtual environment.
• uv add adds a package to the virtual environment.
• uv remove removes a package from the virtual environment.
• uv list lists all packages in the virtual environment.
• uv tree shows the dependency tree of the virtual environment.