Dev tools · alternatives · 2026

24 alternatives to Pybond – A spying and stubbing library inspired by bond (Clojure)

pybond is a spying and stubbing library for python, inspired by the clojure bond library. - epgui/pybond

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Pybond – A spying and stubbing library inspired by bond (Clojure) launched in 2023; newer entries below may have overtaken it.

1
Py-spy – A new sampling profiler for Python programs▲286
Sampling profiler for Python programs. Contribute to benfred/py-spy development by creating an account on GitHub.
2018 · github.com · its alternatives →
2
PySketch▲78
Creative coding editor in Python
2023 · pysketch.com · its alternatives →
3
Making Python one-liner-fit with the new pwk (Python With Kurly braces)▲84
Python With Kurly braces. Contribute to umlet/pwk development by creating an account on GitHub.
2020 · github.com · its alternatives →
4
A modular Python TUI framework with a fast and pretty markup language▲114
PyTermGUI is a highly modular framework offering most of the features one would expect from a GUI library, such as a mature and open Widget API, animations, mouse support and other goodies, right inside the terminal! The markup language is another great feature of the library, and is used by practically all elements of it. It is based on Rich's implementation, but uses a more concise and easier to humanly parse syntax, while being over 10 times faster at parsing due to a long list of optimizations. There is a full Window Manager API included as well, allowing the user to move, resize and…
2022 · github.com · its alternatives →
5PW
PyAirbyte – We built a lightweight Python library for ELT▲18
2024 · docs.airbyte.com · its alternatives →
6
Addict – a Python dict whos values can be get and set using attributes▲80
The Python Dict that's better than heroin. Contribute to mewwts/addict development by creating an account on GitHub.
2014 · github.com · its alternatives →
7
Python library for functional programming▲129
Python library for creating data pipelines with chain functional programming - EntilZha/PyFunctional
2017 · github.com · its alternatives →
8
A simple, highly commented, rootkit which attacks GCC and Python▲94
2014 · github.com · its alternatives →
9
PySchemes – A library for validating data structures in Python▲94
PySchemes is a library for validating data structures in python - spy16/pyschemes
2017 · github.com · its alternatives →
10
My TUI library, PyTermGUI now features an intelligent layout system▲15
This was by far the most common missing feature of the library since my first post, so I'm really happy I managed to figure it out. See the release for some code examples and a detailed changelog, and most importantly, have a great day!
2022 · github.com · its alternatives →
11
Faking SIMD to Search and Sort Strings 5x Faster▲29
I want to share a really dumb, but very practical project I have packaged this summer, to perform operations on strings much faster. I was using Python to work with a multi-terabyte newline-delimited file. Reading, splitting, and shuffling it was a nightmare. So, I wrapped a trivial hardware-friendly heuristic I've been using for the last few years into a CPython library. The part I enjoyed the most is implementing SIMD behavior without SIMD instructions... Using 64-bit words to work at 8-bit granularity. Unlike conventional SIMD, the code would remain the same for ~~almost~~ any hardware.…
2023 · ashvardanian.com · its alternatives →
12
PyFuzz2 – A little fuzzing framework in Python▲42
My little fuzzing framework inspired by grinder. Contribute to susperius/PyFuzz2 development by creating an account on GitHub.
2015 · github.com · its alternatives →
13
PyScribe – A Python library to make print debugging more efficient▲53
DEPCRECATED/UNMAINTAINED - A Python library to make debugging with print statements simpler and more effective. - alixander/PyScribe
2015 · github.com · its alternatives →
14
Plait.py – a fake data modeler▲85
plait.py - a fake data modeler . Contribute to plaitpy/plaitpy development by creating an account on GitHub.
2018 · github.com · its alternatives →
15
zodiac, a new approach to monkey patching in python▲39
A monkeypatching library for python. Contribute to colinmarc/zodiac development by creating an account on GitHub.
2012 · github.com · its alternatives →
16NH
Nuanced – Help AI understand code structure, not just text▲34
Hi HN! We built Nuanced (https://github.com/nuanced-dev/nuanced), an open-source Python library that makes AI coding tools smarter about code structure. The problem: current AI coding assistants see code as just text. They don't understand which functions call which, or how code components depend on each other. This is why they often suggest changes that break dependencies they should have known about. Nuanced solves this by generating call graphs that map these relationships. When you ask "What would break if I change this function?", instead of guessing, the AI can see…
2025 · nuanced.dev · its alternatives →
17
PyBroker – Algotrading in Python with Machine Learning▲70
Hello, I am excited to share PyBroker with you, a free and open-source Python framework that I developed for creating algorithmic trading strategies, including those that utilize machine learning. With PyBroker, you can easily develop and fine-tune trading rules, build powerful ML models, and gain valuable insights into your strategy's performance. Some of the key features of PyBroker include: - A super-fast backtesting engine built using NumPy and accelerated with Numba. - The ability to create and execute trading rules and models across multiple instruments with ease. - Access to…
2023 · github.com · its alternatives →
18
PyCrypt by Pyzit - Cryptographic Tools▲7
Professional-grade cryptographic tools for All.
2025 · pycrypt.pyzit.com · its alternatives →
19
PyBV – A Python Implementation of the BV Homomorphic Encryption Scheme▲9
DEPRECATED- see https://github.com/OpenMined/OpenMined or https://github.com/OpenMined/PySyft - iamtrask/PyBV
2017 · github.com · its alternatives →
20
Copy-and-patch compiler for hard real-time Python▲65
I built Copapy as an experiment: Can Python be used for hard real-time systems? Instead of an interpreter or JIT, Copapy builds a computation graph by tracing Python code and uses a custom copy-and-patch compiler. The result is very fast native code with no GC, no syscalls, and no memory allocations at runtime. The copy-and-patch compiler currently supports x86_64 as well as 32- and 64-bit ARM. It comes as small Python package with no other dependencies - no cross-compiler, nothing except Python. The current focus is on robotics and control systems in general. This project is early but…
Feb 2026 · github.com · its alternatives →
21
Exploding Fish – A URI Library for Clojure▲33
A URI library for Clojure. Contribute to wtetzner/exploding-fish development by creating an account on GitHub.
2015 · github.com · its alternatives →
22
A set of handy tools to work with sequences and collections in Python▲29
A fancy and practical functional tools. Contribute to Suor/funcy development by creating an account on GitHub.
2013 · github.com · its alternatives →
23
A design-by-contract Python package in ~100 lines▲58
Greetings! A 2.5 weekends project to teach myself newer Python features (>= 3.10). Conditions are written as Lambda expressions that annotate parameters and return types, and coexist with type annotations. Symbols to share values between conditions are also supported to a limited extend.
2022 · github.com · its alternatives →
24
PyBites – sharing our passion for Python, one bite a day▲23
With Pybites you'll beat imposter syndrome, stop tutorial paralysis, and build real world apps using Python. It's tried, proven and pytested.
2016 · pybit.es · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →