Python continues to develop yearly. New libraries emerge frequently, streamlining coding workflows. In 2026, a number of have already caught our consideration, providing instruments for knowledge, AI brokers, code evaluation, documentation, and artificial knowledge. Most are open-source and accessible.
# 12 Python Libraries for 2026
These are 12 Python libraries that made waves in 2025, and that each developer ought to strive in 2026.
// 1. MarkItDown
Repo: https://github.com/microsoft/markitdown
Stars: ~86k+ on GitHub (speedy adoption in 2025)
Options: MarkItDown converts paperwork like PDFs, Phrase, Excel, and PowerPoint into Markdown. It preserves construction akin to headings, tables, and lists and is designed for giant language mannequin (LLM) workflows.
// 2. Polars
Repo: https://github.com/pola-rs/polars
Stars: ~37k+ on GitHub
Options: Polars is a quick DataFrame library written in Rust with Python help. It gives lazy and keen execution, multi-threading, and low reminiscence utilization. Polars works with CSV, Parquet, and JSON and is far sooner than Pandas for giant datasets.
// 3. GPT Pilot (Beforehand Pythagora)
Repo: https://github.com/Pythagora-io/gpt-pilot
Stars: ~33.8k+ on GitHub
Options: Pythagora makes use of AI to elucidate code and generate documentation. GPT Pilot serves because the core know-how for the Pythagora VS Code extension, which goals to offer the primary actual AI developer companion able to writing full options, debugging code, discussing points, and requesting opinions.
// 4. Smolagents
Repo: https://github.com/huggingface/smolagents
Stars: ~25k+ on GitHub
Options: Smolagents is an AI agent framework from Hugging Face. It helps you construct clever brokers that write code or name instruments, helps a number of LLMs, and permits multi-step reasoning. It additionally integrates with sandboxed execution environments (Blaxel, Docker, WebAssembly).
// 5. LangExtract
Repo: https://github.com/google/langextract
Stars: ~24k+ on GitHub
Options: LangExtract extracts structured knowledge from unstructured textual content utilizing LLMs. It could detect entities, apply schemas, and visualize outcomes. It helps cloud fashions (e.g. Gemini) and native fashions by way of supplier plugins, and is optimized to deal with lengthy paperwork.
// 6. FastMCP
Repo: https://github.com/jlowin/fastmcp
Stars: ~22k+ on GitHub
Options: FastMCP is a framework for constructing Mannequin Context Protocol (MCP) servers and purchasers. It simplifies connecting purchasers and servers and managing knowledge transformations. These integration patterns make it higher than uncooked MCP implementations.
// 7. Information-Formulator
Repo: https://github.com/microsoft/data-formulator
Stars: ~15k+ on GitHub
Options: Information Formulator is a Microsoft Analysis undertaking that makes use of AI brokers for knowledge exploration by way of wealthy visualizations. It permits you to flip intent and knowledge into charts by an interactive workflow.
// 8. Pydantic-AI
Repo: https://github.com/pydantic/pydantic-ai
Stars: ~14k+ on GitHub
Options: Pydantic-AI is an agentic framework that helps construct production-grade generative AI (GenAI) functions. It combines Pydantic varieties with generative mannequin patterns to make sure outputs are validated and constant.
// 9. Pyrefly
Repo: https://github.com/fb/pyrefly
Stars: ~5k+ on GitHub
Options: Pyrefly is a Python static evaluation and sort checking software. It integrates with Pydantic and gives trendy, quick, and correct sort checking for giant initiatives.
// 10. Morphik-Core
Repo: https://github.com/morphik-org/morphik-core
Stars: ~3.5k+ on GitHub
Options: Morphik is an AI toolset for working with visually wealthy and multimodal paperwork. It lets builders retailer, search, and analyze PDFs, photos, movies, and extra, with Python software program improvement package (SDK) and internet console help.
// 11. ChainForge
Repo: https://github.com/ianarawjo/ChainForge
Stars: ~2.9k+ on GitHub
Options: ChainForge is a visible toolkit for immediate engineering and speculation testing with LLMs. It helps evaluate methods and discover mannequin conduct.
// 12. MostlyAI
Repo: https://github.com/mostly-ai/mostlyai
Stars: ~700+ on GitHub
Options: MostlyAI generates reasonable artificial knowledge for testing and machine studying. It preserves statistical properties of actual knowledge whereas preserving it personal.
Kanwal Mehreen is a machine studying engineer and a technical author with a profound ardour for knowledge science and the intersection of AI with drugs. She co-authored the e book “Maximizing Productiveness with ChatGPT”. As a Google Era Scholar 2022 for APAC, she champions range and educational excellence. She’s additionally acknowledged as a Teradata Range in Tech Scholar, Mitacs Globalink Analysis Scholar, and Harvard WeCode Scholar. Kanwal is an ardent advocate for change, having based FEMCodes to empower girls in STEM fields.
