Python Virtual Environments

A virtual environment is a project-local Python environment containing its own interpreter context and installed packages. In Brevvie Python + AI — Section 1: Setup Your IDE, this is a foundational setup habit.

Core points from the source

• Each project should have its own .venv.
• This avoids dependency conflicts between projects.
• It also avoids damaging or polluting system Python.
• The environment is created with uv venv.
• Activation is used as a visible signal that commands are running inside the project environment.

Practical marker

The lesson repeatedly uses the .venv prompt prefix and the VS Code status bar interpreter label as the main confirmation checks.