Open Source: #python

Catalog projects marked with #python. Tags work as dedicated landing pages, so related tools are easier to find and connect.

This collection holds 168 projects with a combined 11,533,809 GitHub stars. Main languages: Python, Jupyter Notebook, C++.

About the Python projects

Python is the number-one open source language by new projects: people write everything in it, from automation scripts to machine learning frameworks. Its low entry barrier produced the broadest ecosystem around — most tasks have several mature libraries to pick from.

This page collects Python tools, frameworks, and learning repositories. Cards show stars, the license, and a short description; each project page adds an architecture walkthrough with code samples.

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Found: 168
open-webui/open-webui
Open WebUI

Open WebUI is a self-hosted AI interface for Ollama, OpenAI-compatible APIs, RAG, tools, users, and local LLM workflows.

Stars 140,472 Forks 20,165 Author open-webui Language Python License NOASSERTION
Open
ytdl-org/youtube-dl
youtube-dl

youtube-dl is a historically important Python CLI for downloading videos from YouTube and other sites, and the predecessor to the modern yt-dlp branch.

Stars 140,450 Forks 10,673 Author ytdl-org Language Python License Unlicense
Open
langchain-ai/langchain
LangChain

LangChain is an agent engineering platform and Python framework for LLM applications, integrations, agents, and RAG workflows.

Stars 138,727 Forks 22,989 Author langchain-ai Language Python License MIT
Open
Shubhamsaboo/awesome-llm-apps
Awesome LLM Apps

Awesome LLM Apps collects runnable language-model application examples: agents, RAG, voice scenarios, and MCP integrations.

Stars 113,669 Forks 16,868 Author Shubhamsaboo Language Python License Apache-2.0
Open
deepseek-ai/DeepSeek-V3
DeepSeek-V3

DeepSeek-V3 is DeepSeek’s open model repository with a MoE architecture, 671B total parameters, 37B activated parameters, and materials for running and studying it.

Stars 103,726 Forks 16,734 Author deepseek-ai Language Python License MIT
Open
fastapi/fastapi
FastAPI

FastAPI is a Python API framework built on type hints, Starlette, and Pydantic, with automatic OpenAPI documentation and an async model.

Stars 99,026 Forks 9,403 Author fastapi Language Python License MIT
Open
nvbn/thefuck
The Fuck

The Fuck is a Python command-line utility that analyzes the previous command and suggests a corrected version through a rule system.

Stars 97,291 Forks 3,942 Author nvbn Language Python License MIT
Open