Search results

pgmpy

github.com

pgmpy is a Python toolkit for causal and probabilistic reasoning using graphical models. It implements data structures for models such as DAGs, PDAGs, MAGs, PAGs, Bayesian Networks, Dynamic Bayesian Networks and Structural Equation Models, with algorithms for tasks including causal discovery, causal identification, inference, model validation, parameter estimation and simulations. Algorithms follow a unified composable API and are scikit-learn compatible when possible. It is available on PyPI and conda.

pipes.sh

pipeseroni.github.io

Pipeseroni maintains terminal screensavers, the best known being pipes.sh, an original script written in Bash. Related programs include pipes.c in C, snakes.pl in Perl, maze.py in Python, pipesX.sh and weave.sh. The project began with a script posted to the Arch Linux Forums in early 2010, and an MIT license was added in 2015.

Ploomber

github.com

Ploomber is a tool for building data pipelines. It offers a YAML API and a Python API, and its features include caching previous pipeline results and running on Kubernetes, Airflow, AWS Batch or SLURM. It can convert monolithic notebooks into modular pipelines. The repository was archived on Jul 12, 2025 and is read-only.

plotly

plotly.com

Plotly's Python graphing library is a free, open-source library for building interactive, publication-quality charts and graphs. It supports chart types including line plots, scatter plots, bar charts, error bars, box plots, histograms, heatmaps, subplots, multiple-axes, polar charts, and bubble charts. The source is available on GitHub.

pomegranate

github.com

Hidden Markov Models for Python, implemented in Cython for speed and efficiency.

Pritunl

pritunl.com

Pritunl is a free open source enterprise distributed VPN server supporting OpenVPN, WireGuard and IPsec. It virtualizes private networks across datacenters and provides remote access through a web interface. Servers are distributed across multiple instances with automated failover, and the project is built on MongoDB. A Python plugin system allows custom authentication and access control.

Profanity is a console-based XMPP client written in C using ncurses and libstrophe, inspired by Irssi. It is available on Linux, FreeBSD, OpenBSD, OSX, Windows and Android via Termux. The client supports XMPP chat services, MUC chat rooms, roster management, encryption with OTR, PGP and OMEMO, and plugins written in Python and C.

Programiz

programiz.com

Programiz provides free online compilers and code editors that run in a browser for languages including Python, JavaScript, SQL, C, C++, Java, HTML and CSS. It also offers interactive lessons with practical code that can be run directly in the browser. The site states no installation or sign up is needed.

ProperTree

github.com

ProperTree is a cross-platform GUI plist editor written in Python and Tkinter. It offers document-based multiple windows, node drag and drop, find and replace, ordered or unordered dictionary support, an undo-redo stack, and context-aware right-click menus with templates for OpenCore or Clover configuration files.

prophet

facebook.github.io

Prophet is a forecasting procedure implemented in R and Python. It provides automated forecasts that can be tuned by hand, and is based on an additive model with non-linear trends and yearly, weekly and daily seasonality plus holiday effects. Facebook released it as open source, available on CRAN and PyPI.

Pycaret

github.com

Open-source, low-code machine learning library in Python that automates machine learning workflows.

pyclugen

github.com

Multidimensional cluster generation in Python.

PyCM

github.com

PyCM is a multi-class confusion matrix library written in Python. It supports input data vectors and direct matrices and offers post-classification model evaluation statistics. It is aimed at data scientists needing metrics for predictive models and classifiers. A MATLAB setup is also documented.

pycord

github.com

Pycord is a modern, easy to use, feature-rich, and async ready API wrapper for Discord written in Python

Pydantic AI

pydantic.dev

Pydantic AI is a Python-focused AI development framework documented by Pydantic. It supports building agents, realtime voice tools, image generation, and embeddings, with end-to-end typed interfaces for all supported models and providers.

pydantic/pydantic-ai

github.com

Pydantic AI is a Python AI SDK described as a typed, extensible agent loop that works with any model. It covers agents, realtime voice, image generation and embeddings. Separate packages include Pydantic Evals, Pydantic Graph, genai-prices and Monty. The repository is MIT licensed.

PyDPainter

pydpainter.org

PyDPainter is a pixel art program written in Python using PyGame, inspired by the Commodore Amiga version of Deluxe Paint. It offers painting tools, color cycling, animation and gradient fills, and runs on Windows, Mac and Linux under the GPLv3 license.

PyGPT

pygpt.net

PyGPT is a free, open-source desktop AI assistant compatible with Windows, Linux and macOS operating systems. It supports both cloud-based and local AI models, and offers features including AI chat, multi-agent workflows, RAG-powered knowledge retrieval from user files, skills and plugin support, Python and MCP automation, and voice, vision and content generation capabilities.

Pyload

github.com

Pyload is a free, open-source download manager written in pure Python. It is hosted as the pyload/pyload repository on GitHub, with repository sections including a project overview, introduction, and quick start guide.

PyMC3

pymc.io

Python Library for Probabalistic Programming (Bayesian Inference and Machine Learning).

PyNLPl

github.com

PyNLPl, pronounced "pineapple", is a Python library for natural language processing. It includes modules for common and less common NLP tasks, such as n-gram and frequency list extraction, simple language model building, parsers for common NLP file formats including FoLiA, Giza, Moses, ARPA, Timbl and CQL, clients for NLP-specific servers, and extensive tools for working with FoLiA XML linguistic annotation.

PyOD

github.com

PyOD is an open-source Python library hosted on GitHub for anomaly detection across tabular, time series, graph, text, image and audio data. It includes over 60 anomaly detectors, an ADEngine orchestration tool, and supports agentic workflows for use with AI agents.

PyPaperBot

github.com

PyPaperBot is a Python tool for downloading scientific papers using Google Scholar, Crossref, SciHub, and SciDB.

PyStanfordDependencies

github.com

PyStanfordDependencies is a Python interface for converting Penn Treebank trees to Stanford Dependencies and Universal Dependencies. It offers a get_instance() function with subprocess or jpype backends, and convert_tree() or convert_trees() methods returning Token objects. Visualization options include asciitree, Graphviz dotgraphs, and interactive xdot windows. A Stanford CoreNLP or Parser jar file can be supplied, or downloaded automatically.