Browse free open source Python Libraries and projects below. Use the toggles on the left to filter open source Python Libraries by OS, license, language, programming language, and project status.

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  • 1
    Pyparsing

    Pyparsing

    Python library for creating PEG parsers

    pyparsing is a Python library that facilitates the creation of parsers using a parsing expression grammar (PEG) approach. It allows developers to construct grammars directly in Python code, offering an alternative to traditional parsing methods.​
    Downloads: 10 This Week
    Last Update:
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  • 2
    QuarkPanTool

    QuarkPanTool

    A tool for batch transferring, sharing and downloading quark network

    QuarkPanTool is a command-line utility for batch operations with Quark cloud-drive files and shared links. It can transfer files from multiple shared URLs into a user's own drive in one workflow. The program can also generate sharing links in bulk for folders already stored in the account. Local downloading is supported for batches of cloud files instead of requiring one-by-one retrieval through the website. Playwright handles browser-based login and can preserve the authenticated session, while manual cookies are also supported. The interface is intentionally simple and packaged Windows executables are available in addition to running the Python source. The project is aimed at reducing repetitive cloud-drive management work when many Quark links or files must be processed together.
    Downloads: 10 This Week
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  • 3
    PyMySQL

    PyMySQL

    MySQL client library for Python

    PyMySQL is a 100% Python implementation of the MySQL client protocol, allowing Python applications to connect to MySQL and MariaDB databases without requiring binary extensions. It supports standard DB‑API 2.0 features, such as cursors, transactions, and parameterized queries. PyMySQL is versatile for web applications, scripts, and tools, offering compatibility with ORMs like SQLAlchemy and frameworks like Django.
    Downloads: 9 This Week
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  • 4
    Ollama Python

    Ollama Python

    Ollama Python library

    ollama-python is an open-source Python SDK that wraps the Ollama CLI, allowing seamless interaction with local large language models (LLMs) managed by Ollama. Developers use it to load models, send prompts, manage sessions, and stream responses directly from Python code. It simplifies integration of Ollama-based models into applications, supporting synchronous and streaming modes. This tool is ideal for those building AI-driven apps with local model deployment.
    Downloads: 8 This Week
    Last Update:
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  • 5
    PDFSticher

    PDFSticher

    Code repository for PDFStitcher, a utility to stitch together PDFs

    The open source PDF stitching software for sewists, by sewists. PDFSticher is a utility for stitching together many PDF pages from one document into a single page. This is also called "N-Up" or page imposition. This program was created in order to convert sewing patterns into a convenient format for projecting, though it could be used to stitch together any PDF. Since version 0.4, it is also possible to select layers for inclusion/exclusion in the final output. Additionally, line properties can be modified for each layer if the input PDF is compatible.
    Downloads: 8 This Week
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  • 6
    Requests

    Requests

    A simple, yet elegant, HTTP library.

    Requests is the de facto HTTP library for Python—simple, elegant, and human-friendly. It wraps urllib3 to provide intuitive methods for sending HTTP/1.1 requests, handling sessions, cookies, redirects, authentication, proxies, and more.
    Downloads: 8 This Week
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  • 7
    SENAITE LIMS

    SENAITE LIMS

    SENAITE Meta Package

    SENAITE is a beautiful trigonal, oil-green to greenish-black crystal, with almost the hardness of a diamond. Although the crystal is described with a complex formula, it still has clear and straight shapes. Therefore, it reflects nicely the complexity of the LIMS, while providing a modern, intuitive, and friendly UI/ UX. Amongst other functionalities, SENAITE comes with highly-customizable workflows to drive users through the analytical process, easy-to-use UI for data registration, automatic import of results, data validation, and transition constraints. SENAITE can be easily integrated with instruments by using off-the-shell interfaces for data import and export. Custom interfacing is supported too. Import instrument results and avoid human errors in the carrying-over process. Reduce the turnaround time on results report delivery. Assign priorities to samples and due dates for tests, plan and assign the daily work by using worksheets, and keep track of delayed tests immediately.
    Downloads: 8 This Week
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  • 8
    Veusz

    Veusz

    Veusz scientific plotting application

    Veusz is a scientific plotting application for creating publication-quality two-dimensional and three-dimensional graphs. It combines a graphical editor with Python scripting and command-line interfaces for automated visualization. Users can create line graphs, histograms, contour plots, vector fields, polar charts, and three-dimensional surfaces. Its widget-based architecture supports complex figure layouts, nested plots, and multiple axes. Data can be imported from CSV, HDF5, FITS, NumPy, and other scientific formats. Built-in tools provide dataset manipulation, mathematical functions, and curve fitting. Figures support LaTeX-style labels and customizable annotations. Completed graphs can be exported to PDF, SVG, PNG, EPS, and EMF for reports and publications.
    Downloads: 8 This Week
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  • 9
    pyfpdf

    pyfpdf

    Simple PDF generation for Python (FPDF PHP port)

    PyFPDF is a library for PDF document generation under Python, ported from PHP (see FPDF: "Free"-PDF, a well-known PDFlib-extension replacement with many examples, scripts, and derivatives). Compared with other PDF libraries, PyFPDF is simple, small, and versatile, with advanced capabilities, and is easy to learn, extend and maintain.
    Downloads: 8 This Week
    Last Update:
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  • 10
    Malicious PDF Generator

    Malicious PDF Generator

    Generate a bunch of malicious pdf files with phone-home functionality

    Generate ten different malicious PDF files with phone-home functionality. Can be used with Burp Collaborator or Interact.sh. Used for penetration testing and/or red-teaming etc. I created this tool because I needed a third-party tool to generate a bunch of PDF files with various links.
    Downloads: 7 This Week
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  • 11
    how-to-live-better

    how-to-live-better

    Online single-page reading version of the 528-item "High-Value Life"

    How to Live Better is a self-contained web reader for the open-source High Cost-Performance Life Guide. It renders all 32 sections and 528 recommendations from the upstream project into a single searchable HTML page. Each recommendation is presented as a card with evidence grade, value tier, and cost labels. Users can search the full guide, filter for top-grade evidence, or show only simplified explanations. A synchronized table of contents, responsive mobile layout, dark mode, and print support improve navigation. The page uses no external resources, so it can be opened and read entirely offline. A build script regenerates the page from the upstream repository, while GitHub Actions checks for updates automatically.
    Downloads: 7 This Week
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  • 12
    n8n Workflows

    n8n Workflows

    All of the workflows of n8n i could find (also from the site itself)

    This repository aggregates a well-organized collection of community-submitted automation workflows built for n8n, a fair-code, self-hostable automation tool. It serves as an index for discovering ready-made flows to automate tasks across multiple services and platforms. 2,057 workflows with meaningful, searchable names. 365 unique integrations across popular platforms. 29,445 total nodes with professional categorization. Quality assurance - All workflows analyzed and categorized.
    Downloads: 7 This Week
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  • 13
    pyglet

    pyglet

    pyglet is a cross-platform windowing and multimedia library for Python

    Pyglet is a cross-platform windowing and multimedia library for Python, intended for developing games and other visually rich applications. It supports windowing, input event handling, OpenGL graphics, loading images and videos, and playing sounds and music.
    Downloads: 7 This Week
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  • 14
    Ansible Examples

    Ansible Examples

    A few starter examples of ansible playbooks, to show features

    This repository collects practical, real-world examples of using Ansible to automate infrastructure, deployments, and configurations. Each directory demonstrates a specific use case—ranging from setting up web servers, load balancers, and databases to orchestrating multi-tier applications in cloud environments. The examples highlight common Ansible practices such as organizing inventories, writing reusable playbooks, using roles, and handling variables and templates. They’re designed to be adapted directly into your own infrastructure or to serve as reference blueprints when learning how to structure automation projects. Whether you’re managing a handful of servers or deploying at scale, this repo provides starting points that illustrate how Ansible can streamline repetitive operational tasks.
    Downloads: 6 This Week
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  • 15
    List of independent blogs in Chinese

    List of independent blogs in Chinese

    List of independent blogs in Chinese

    List of independent blogs in Chinese is a curated open repository that aggregates and maintains a large list of independent Chinese-language blogs across technology, design, and personal knowledge domains. The project aims to promote the independent blogging ecosystem by making it easier for readers to discover high-quality personal sites outside major content platforms. It is community-driven, allowing contributors to submit and update blog entries so the directory remains current and diverse. The repository functions both as a discovery index and as a cultural snapshot of the independent Chinese web publishing landscape. It is particularly useful for developers, researchers, and readers interested in decentralized content and personal publishing trends. Overall, the project acts as a living catalog that supports the visibility and longevity of independent blogging communities.
    Downloads: 6 This Week
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  • 16
    Fast Artificial Neural Network Library is a free open source neural network library, which implements multilayer artificial neural networks in C with support for both fully connected and sparsely connected networks. Cross-platform execution in both fixed and floating point are supported. It includes a framework for easy handling of training data sets. It is easy to use, versatile, well documented, and fast. Bindings to more than 15 programming languages are available. An easy to read introduction article and a reference manual accompanies the library with examples and recommendations on how to use the library. Several graphical user interfaces are also available for the library.
    4.6 out of 5 stars 9 Reviews
    Downloads: 34 This Week
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  • 17
    Jianying Headless

    Jianying Headless

    Native Jianying drafts, isolated editing/export

    Jianying Headless is a local automation toolkit for creating and editing Jianying Pro video projects on macOS. Structured editing plans can generate editable drafts with multiple video, audio, text, and overlay tracks. Existing projects can be modified inside isolated copies so the original draft is not overwritten. The system supports local media, fonts, keyframes, selected masks, transitions, and native MP4 export through an installed Jianying engine. A Python command-line interface and Agent Skill make it suitable for batch processing and AI-assisted editing. Environment checks verify compatible application versions, tools, media, and project state before running. It is an independent integration rather than an official Jianying SDK.
    Downloads: 5 This Week
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  • 18
    PDFium Library

    PDFium Library

    Project to compile PDFium library to multiple platforms

    Project to compile PDFium library to multiple platforms. PDFium project is from Google and I only patch it to compile to all platforms.
    Downloads: 5 This Week
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  • 19
    Professional Services

    Professional Services

    Common solutions and tools developed by Google Cloud

    Professional Services repository is a collection of real-world solutions, tools, and reference implementations developed by Google Cloud’s Professional Services team to address common enterprise challenges. Unlike simple sample repositories, it focuses on production-oriented use cases such as data pipelines, machine learning workflows, infrastructure automation, and security management. The repository contains a wide variety of projects, including tools for validating data migrations, generating large datasets for testing, building analytics dashboards, and automating policy enforcement in cloud environments. These solutions are intended to serve as blueprints that organizations can adapt and extend for their own needs rather than turnkey products. It also includes reusable utilities, helper scripts, and example architectures that demonstrate best practices for building scalable and maintainable systems on Google Cloud.
    Downloads: 5 This Week
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  • 20
    The Arcade Library

    The Arcade Library

    Easy to use Python library for creating 2D arcade games

    Arcade is an easy-to-use Python library for creating 2D video games. It provides a modern and straightforward API, enabling developers to craft engaging games and graphical applications efficiently. Arcade supports rendering shapes, handling user input, and managing game physics, making it suitable for both beginners and experienced developers.
    Downloads: 5 This Week
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  • 21

    pythondialog

    Python module to build dialogs for terminal-based applications

    This is a Python module for doing terminal-based user interaction. It wraps the dialog/Xdialog program, and provides a nice, object-oriented programming model.
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    5.0 out of 5 stars 2 Reviews
    Downloads: 38 This Week
    Last Update:
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  • 22
    Copy Fail - CVE-2026-31431

    Copy Fail - CVE-2026-31431

    epository that demonstrates and analyzes a Linux kernel vulnerability

    Copy Fail - CVE-2026-31431 is a proof-of-concept repository that demonstrates and analyzes a specific Linux kernel vulnerability identified as CVE-2026-31431. The project provides experimental scripts and documentation to reproduce and study the exploit in controlled environments. It is designed for security researchers and engineers who want to understand the mechanics of the vulnerability. The repository includes tested configurations across multiple Linux distributions and kernel versions. It emphasizes reproducibility and technical clarity in demonstrating the issue. The project serves as both a research tool and an educational resource for vulnerability analysis. Overall, it contributes to the study of system-level security flaws and mitigation strategies.
    Downloads: 4 This Week
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  • 23
    Google Fonts

    Google Fonts

    Font files available from Google Fonts, and a public issue tracker

    This is the central GitHub repository for Google Fonts, containing font binaries, metadata, and tools for uploading new typeface families. It serves as the staging area for fonts and follows stringent licensing structures. The top-level directories indicate the license of all files found within them. Subdirectories are named according to the family name of the fonts within. The /catalog subdirectory contains additional metadata, such as profile texts and portrait/avatar images of font designers, and this is open for contributions and corrections from anyone via GitHub. Since all the fonts available here are licensed with permission to redistribute, subject to the license terms, you can self-host using a variety of third-party projects.
    Downloads: 4 This Week
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  • 24
    Google Kubernetes Engine (GKE) Samples

    Google Kubernetes Engine (GKE) Samples

    Sample applications for Google Kubernetes Engine (GKE)

    Google Kubernetes Engine (GKE) Samples repository is a comprehensive collection of sample applications and reference implementations designed to demonstrate how to build, deploy, and manage workloads on Google Kubernetes Engine (GKE). It serves as a practical companion to official GKE tutorials, providing real, runnable code that illustrates how containerized applications are packaged, deployed, and scaled within Kubernetes clusters. The repository is organized into multiple categories such as AI and machine learning, autoscaling, networking, observability, security, and cost optimization, allowing developers to explore specific use cases and architectural patterns. It includes both simple quickstart examples, like basic “hello world” applications, and more advanced scenarios such as migrating monolithic applications to microservices, implementing service meshes, and configuring custom autoscaling metrics.
    Downloads: 4 This Week
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  • 25
    Graph Nets library

    Graph Nets library

    Build Graph Nets in Tensorflow

    Graph Nets, developed by Google DeepMind, is a Python library designed for constructing and training graph neural networks (GNNs) using TensorFlow and Sonnet. It provides a high-level, flexible framework for building neural architectures that operate directly on graph-structured data. A graph network takes graphs as inputs, consisting of edges, nodes, and global attributes, and produces updated graphs with modified feature representations at each level. This library implements the foundational ideas from DeepMind’s paper “Relational Inductive Biases, Deep Learning, and Graph Networks”, offering tools to explore relational reasoning and message-passing neural networks. Graph Nets supports both TensorFlow 1 and TensorFlow 2, working with CPU and GPU environments, and includes educational Jupyter demos for shortest path finding, sorting, and physical prediction tasks. The codebase emphasizes modularity, allowing users to easily define their own edge, node, and global update functions.
    Downloads: 4 This Week
    Last Update:
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