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

Activating an Environment

The --user Install Flag

Editable Installs

Why Use Virtual Environments

pipenv and poetry Overview

The pyproject.toml File

Transitive Dependencies

Listing Installed Packages

Installing Packages with pip

Semantic Versioning

The Role of PyPI

Checking Versions

Version Specifiers in pip

Lock Files and Reproducibility

Installing from requirements.txt

How Activation Changes PATH

Generating requirements.txt

venv vs virtualenv vs conda

Upgrading and Uninstalling

Creating a venv

Beyond pip: pipenv, poetry, conda

Pinning for Reproducible Environments

Wheels vs Source Distributions

Installing from requirements.txt

The requirements.txt File

Avoiding System Python Installs

Listing and Inspecting Packages

Semantic Versioning Basics

Transitive Dependencies and Conflicts

Uninstalling Packages

Creating an Environment with venv

Installing Packages with pip

Version Constraint Operators

Freezing Dependencies

The site-packages Directory

Editable Installs

Alternative Tooling Overview

What Is a Virtual Environment

Activating and Deactivating

How Activation Changes PATH

Upgrading Packages

PyPI: The Default Index

Global vs Per-Project Installs

pip vs python -m pip

PyPI and How pip Downloads Packages

Version Specifiers in Requirements

Managing Dependencies with requirements.txt