Hacker News with Generative AI: Python

Show HN: Wetlands – a lightweight Python library for managing Conda environments (arthursw.github.io)
Wetlands is a lightweight Python library for managing Conda environments.
Python, Conda, Software, Tools
30 points by arthursw 33 days ago | 42 comments
Show HN: 3DGS implementation in Nvidia Warp: clean, minimal, runs on CPU and GPU (github.com/guoriyue)
This project reimplements the core ideas of 3D Gaussian Splatting in a clean, minimalist Python codebase using NVIDIA Warp.
Computer Graphics, Python, NVIDIA, Open Source, 3D
18 points by Rigue 34 days ago | 2 comments
Show HN: My LLM CLI tool can run tools now, from Python code or plugins (simonwillison.net)
LLM 0.26 is out with the biggest new feature since I started the project: support for tools. You can now use the LLM CLI tool—and Python library—to grant LLMs from OpenAI, Anthropic, Gemini and local models from Ollama with access to any tool that you can represent as a Python function.
OpenAI, Python, Tools
529 points by simonw 34 days ago | 165 comments
Python Pandas Ditches NumPy for Speedier PyArrow (thenewstack.io)
Python, Pandas, PyArrow, Performance Optimization, Data Analysis
17 points by puttycat 34 days ago | 5 comments
Pyrefly vs. Ty: Comparing Python's two new Rust-based type checkers (edward-li.com)
Earlier this month, two new Rust-based Python type checkers hit the spotlight: pyrefly and ty. Although neither is officially released, they are a welcome change to the Python type checking world, historically dominated by mypy and pylance.
Python, Type Checking, Rust, Programming Languages, Tools
394 points by edwardjxli 34 days ago | 160 comments
Initial support for calling Mojo from Python (modular.com)
Python, Programming Languages, Interoperability
19 points by melodyogonna 36 days ago | 0 comments
Writing your own CUPS printer driver in 100 lines of Python (2018) (pretix.eu)
In version 1.8 of pretix, we introduced shipping management as a new feature for the pretix Hosted and Enterprise editions.
Python, Printing, Programming, Open Source, Software
203 points by todsacerdoti 36 days ago | 30 comments
Mutmut – Python Mutation Tester (github.com/boxed)
Mutmut is a mutation testing system for Python, with a strong focus on ease of use.
Python, Testing, Software, Programming Tools
20 points by e-topy 36 days ago | 3 comments
Python in LibreOffice (LibrePythonista Extension) (libreoffice.org)
LibrePythonista is an extension for LibreOffice Calc. The extension allows Interactive Python code to be run directly in a spreadsheet.
Python, LibreOffice, Spreadsheets, Programming Languages, Open Source
34 points by nogajun 37 days ago | 5 comments
Show HN: Web Apps for Python Devs with Auto-Generated UI (davia.ai)
Davia transforms your Python code into fully-functional tools with intuitive interfaces automatically. No more spending days on UI development or wrestling with frontend frameworks.
Python, Web Development, User Interface, Tools, AI
36 points by ruben-davia 38 days ago | 14 comments
DumPy: NumPy except it's OK if you're dum (dynomight.net)
I don’t like NumPy
Python, Libraries, Data Science, Software
28 points by antimatter15 38 days ago | 1 comments
PyCon US 2025: Keynote Speaker – Cory Doctorow on Enshitification [video] (youtube.com)
Python, Conferences, Technology, Video, Science Fiction
12 points by bilsbie 38 days ago | 1 comments
DumPy: NumPy except it's OK if you're dum (dynomight.net)
They say you can’t truly hate someone unless you loved them first. I don’t know if that’s true as a general principle, but it certainly describes my relationship with NumPy. NumPy, by the way, is...
Python, Data Science, NumPy, Libraries
7 points by jjar 38 days ago | 2 comments
Loading Pydantic models from JSON without running out of memory (pythonspeed.com)
You have a large JSON file, and you want to load the data into Pydantic. Unfortunately, this uses a lot of memory, to the point where large JSON files are very difficult to read. What to do?
Python, Data Processing, Memory Management, Optimization, Pydantic
134 points by itamarst 39 days ago | 45 comments
DumPy: NumPy except it's OK if you're dum (dynomight.substack.com)
Python, NumPy, Data Science, Programming, Humor
7 points by crescit_eundo 39 days ago | 2 comments
DumPy: NumPy except it's OK if you're dum (dynomight.net)
I don’t like NumPy
Python, Libraries, Data Science, Humor
23 points by mbforbes 39 days ago | 4 comments
Free-Threaded Python Library Compatibility Checker (ft-checker.com)
Free-threaded Python Library Compatibility Checker
Python, Libraries, Compatibility, Tools
38 points by lifthrasiir 39 days ago | 7 comments
Recent Disruptive Changes from Setuptools (lwn.net)
In late March, version 78.0.1 of Setuptools — an important Python packaging tool — was released. It was scarcely half an hour before the first bug report came in, and it quickly became clear that the change was far more disruptive than anticipated.
Python, Software, Open Source, Bug Reports, Packaging
7 points by todsacerdoti 40 days ago | 0 comments
I made a code security auditor for all you dumb vibe coders – thank me later (github.com/anshulyadav1976)
VulnViper is an intelligent security auditing tool designed to help developers identify and understand potential vulnerabilities in their Python codebases.
Python, Security, Code Auditing, Tools
5 points by anshulyadav1976 40 days ago | 0 comments
Python Tooling at Scale: LlamaIndex’s Monorepo Overhaul (llamaindex.ai)
When we talk about LlamaIndex, we’re actually referring to an ecosystem consisting of more than 650 Python packages, mostly Integrations and Packs. All these packages share a single GitHub repository, what engineers fondly call a “monorepo”. In this article, we’re going to introduce LlamaDev, our new tool for managing monorepos at scale, and explain the challenges we ran into with existing tooling to get us to this point.
Python, Software Engineering, Open Source, AI
38 points by cheesyFish 40 days ago | 11 comments
Does Field Ordering Affect Model Performance? (kallyaleksiev.net)
I mostly wrote this post as an excuse to try the freshly-minted and excellent pydantic-evals framework for LLM evaluations but one interesting question that arises when working with Pydantic Models to implement structured output in your AI applications is: What happens if you shuffle the order of fields in your schema?
Machine Learning, Model Performance, Pydantic, Python
4 points by kallyaleksiev 40 days ago | 0 comments
Fused Apps: Building, Editing and Sharing Python in the Browser (fused.io)
This is a technical deep dive into how we built Fused Apps, a way to build a Python-based workflow in your browser, that you can save and share with someone. You can read the full product announcement here.
Python, Web Development, Software, Tools
5 points by MaxLenormand 40 days ago | 0 comments
Modern Python Boilerplate – good package basic structure (ycombinator.com)
TL;DR: Python Boilerplate repo for fast package building with all best practices
Python, Software Development, Best Practices, Open Source
11 points by lambda-science 40 days ago | 4 comments
Show HN: Juvio – UV Kernel for Jupyter (github.com/OKUA1)
Juvio: reproducible, dependency-aware, and Git-friendly Jupyter Notebooks.
Jupyter Notebooks, Open Source, Python, Data Science, Reproducibility
118 points by okost1 41 days ago | 27 comments
Python Design Patterns (2020) (python-patterns.guide)
Python, Design Patterns, Programming
13 points by Tomte 42 days ago | 0 comments
Bayesian Modeling and Computation in Python (2021) (bayesiancomputationbook.com)
Bayesian Statistics, Python, Machine Learning, Statistics, Books
8 points by Tomte 42 days ago | 0 comments
Python for Mathematics (vknight.org)
Python, Mathematics, Programming
7 points by sohkamyung 42 days ago | 0 comments
Create a Cursor/Windsurf Clone in Python from Scratch (1-Hour Challenge) [video] (youtube.com)
Python, Programming, Games, Tutorials, Video
5 points by marufm 43 days ago | 1 comments
Show HN: Python Simulator of David Deutsch’s “Constructor Theory of Time” (github.com/gvelesandro)
A Python implementation of David Deutsch’s Constructor Theory framework, exposing key concepts—from simple Tasks and branching substrates to quantum-gravity and electromagnetism—entirely in code. Includes a “universal constructor” that can bootstrap itself from a list of Tasks, demonstrating self-replication and the power of Constructor Theory.
Physics, Python, Software, Simulation, Theory
84 points by SandroG 43 days ago | 11 comments
Show HN: Buckaroo – Data table UI for Notebooks (github.com/paddymul)
Buckaroo is a modern data table for Jupyter that expedites the most common exploratory data analysis tasks.
Data Visualization, Jupyter Notebooks, Data Analysis, Python, Open Source
105 points by paddy_m 43 days ago | 9 comments