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Python dependency management and packaging made easy.

Project description

Poetry: Python packaging and dependency management made easy

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Poetry helps you declare, manage and install dependencies of Python projects, ensuring you have the right stack everywhere.

Poetry Install

Poetry replaces, requirements.txt, setup.cfg, and Pipfile with a simple pyproject.toml based project format.

name = "my-package"
version = "0.1.0"
description = "The description of the package"

license = "MIT"

authors = [
    "Sébastien Eustace <>"

repository = ""
homepage = ""

# README file(s) are used as the package description
readme = ["", "LICENSE"]

# Keywords (translated to tags on the package index)
keywords = ["packaging", "poetry"]

# Compatible Python versions
python = ">=3.8"
# Standard dependency with semver constraints
aiohttp = "^3.8.1"
# Dependency with extras
requests = { version = "^2.28", extras = ["security"] }
# Version-specific dependencies with prereleases allowed
tomli = { version = "^2.0.1", python = "<3.11", allow-prereleases = true }
# Git dependencies
cleo = { git = "", branch = "master" }
# Optional dependencies (installed by extras)
pendulum = { version = "^2.1.2", optional = true }

# Dependency groups are supported for organizing your dependencies
pytest = "^7.1.2"
pytest-cov = "^3.0"

# ...and can be installed only when explicitly requested
optional = true
Sphinx = "^5.1.1"

# Python-style entrypoints and scripts are easily expressed
my-script = "my_package:main"


Poetry supports multiple installation methods, including a simple script found at For full installation instructions, including advanced usage of the script, alternate install methods, and CI best practices, see the full installation documentation.


Documentation for the current version of Poetry (as well as the development branch and recently out of support versions) is available from the official website.


Poetry is a large, complex project always in need of contributors. For those new to the project, a list of suggested issues to work on in Poetry and poetry-core is available. The full contributing documentation also provides helpful guidance.


Related Projects

  • poetry-core: PEP 517 build-system for Poetry projects, and dependency-free core functionality of the Poetry frontend
  • poetry-plugin-export: Export Poetry projects/lock files to foreign formats like requirements.txt
  • poetry-plugin-bundle: Install Poetry projects/lock files to external formats like virtual environments
  • The official Poetry installation script
  • website: The official Poetry website and blog

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