Poetry

Poetry#

WSGI (Web Server Gateway Interface) is a specification for a standardized interface between web servers and Python web applications or frameworks. It defines how a web server communicates with Python web applications and how these applications can be chained together to process a request.

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Poetry is a package management and dependency resolution tool for Python. It’s designed to help developers manage project dependencies, virtual environments, and packaging in a more robust and user-friendly way than traditional tools like pip and setup.py.

Key features of Poetry include:

  1. Dependency Management: Poetry uses a single pyproject.toml file to declare dependencies with precise version constraints.

  2. Lockfile System: Poetry generates a poetry.lock file that ensures reproducible installations across different environments.

  3. Virtual Environment Management: Poetry automatically creates and manages virtual environments for your projects.

  4. Package Building and Publishing: Poetry simplifies packaging Python projects and publishing them to PyPI.

  5. Dependency Resolution: Poetry has a sophisticated dependency resolver that handles complex dependency trees and conflicts.

  6. Script Running: Poetry allows you to define and run project-specific scripts.

  7. Project Scaffolding: Poetry can initialize new projects with a standard structure.

Basic commands#

  • poetry new project-name - Create a new project

  • poetry add package-name - Add a dependency

  • poetry install - Install dependencies

  • poetry update - Update dependencies

  • poetry run python script.py - Run a script in the project’s virtual environment

  • poetry build - Build your package

  • poetry publish - Publish your package to PyPI

Poetry has gained significant popularity in the Python community as an alternative to traditional tooling because it provides a more consistent and reliable development workflow, particularly for larger projects with complex dependency requirements.