Inspecting Installed Packages with pip

Installing and Managing Packages with pip

How venv Changes PATH and site-packages

Creating and Activating a venv

Why Virtual Environments Exist

Dependency Conflicts and pip's Resolver

Isolating CLI Tools with pipx

Editable Installs with pip install -e

Installing Packages with pip

Listing Installed Packages

Transitive Dependencies

The pyproject.toml File

pipenv and poetry Overview

Why Use Virtual Environments

Editable Installs

The --user Install Flag

Activating an Environment

Lock Files and Reproducibility

Creating a venv

Upgrading and Uninstalling

venv vs virtualenv vs conda

Generating requirements.txt

Installing from requirements.txt

Semantic Versioning

Version Specifiers in pip

Checking Versions

How Activation Changes PATH

The Role of PyPI

Beyond pip: pipenv, poetry, conda

Pinning for Reproducible Environments

Wheels vs Source Distributions

pip vs python -m pip

PyPI: The Default Index

Alternative Tooling Overview

Installing Packages with pip

Installing from requirements.txt

The site-packages Directory

How Activation Changes PATH

Uninstalling Packages

Creating an Environment with venv

Editable Installs

Upgrading Packages

What Is a Virtual Environment

Transitive Dependencies and Conflicts

Semantic Versioning Basics

Version Constraint Operators

Freezing Dependencies

Listing and Inspecting Packages

Global vs Per-Project Installs

Avoiding System Python Installs

Activating and Deactivating

The requirements.txt File

PyPI and How pip Downloads Packages

Version Specifiers in Requirements

Managing Dependencies with requirements.txt