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Top 23 Python unit-testing Projects
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pytest
The pytest framework makes it easy to write small tests, yet scales to support complex functional testing
Large-scale changes to fix a bug often introduce unintended side effects, making incremental fixes a safer approach. Robbin Schuchmann, Co-Founder of EOR Overview, advises, “Applying fixes incrementally is the most reliable way to correct bugs in applications.” By adjusting one variable or function at a time and validating each change with tools like pytest or Mocha, developers ensure fixes are effective without destabilizing the system. This aligns with test-driven development (TDD), which a 2022 IEEE study found reduces defect rates by 15%. Incremental fixes also simplify rollbacks, preserving stability.
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We searched for other IDEs that would be simple to use, allow easy import of Arduino libraries, and upload the code on the board. I wanted something of the like of Atom editor, but it was not supported on Raspberry Pi (and deprecated now). We found that PlatformIO could be an option. It is a plugin in VSCode that can manage many type of boards. We went ahead, installed VScode, then the PlatformIO extension. We opened a terminal in VScode with Q chat, and voila! Valentin could finally continue to play with a more stable solution. He had a simple way to code, compile, and push code on the Arduino.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Starring our repository: Kaizen on GitHub
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databricks-nutter-repos-demo
Demo of using the Nutter for testing of Databricks notebooks in the CI/CD pipeline
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Project mention: Co-Evolving LLM Coder and Unit Tester via Reinforcement Learning | news.ycombinator.com | 2025-06-05
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drf-api-action
drf-api-action elevates Django Rest Framework testing with the action_api fixture, simplifying REST endpoint testing to a seamless, function-like experience.
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Project mention: AWS Serverless implementation of all of the OpenAI API documentation examples | news.ycombinator.com | 2025-07-30
A React + AWS Serverless + OpenAI Python PyPi full stack implementation of all of the [example applications](https://platform.openai.com/docs/examples) found in the official OpenAI API documentation. See this [system architectural diagram](https://github.com/FullStackWithLawrence/aws-openai/blob/mai...) for details.
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data-structures-for-teaching
Implementations of some Data Structures and Algorithms, with different approaches and some practical applications.
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In our battle against AI-written content, we launched UnitText as an alternative to use AI to review text, instead of writing it. I got the idea from this lovely book "Writing for Developers"[1] that recommended some quality prompts to use a LLM as what could be considered a copy editor.
I initially liked to call it "unit tests for text", which inspired a prototype,[2] a blog post,[3] and then this product.
We believe everyone is getting really fed up of reading content only to immediately understand it was written by a robot. At the same time, we don't think language models are completely to blame, they are just a tool, and it's on us to use them properly.
The idea of UnitText is that before one starts writing they define a goal and audience for their content. It could be a blog post, but also an email... at some point we'd like to offer different templates for various types of content.
The human is the one doing the writing, and they can then ask the AI to "review" (or, "test") the content, to see whether the goal was met, the explanation is clear, something can be added or cut...
[1]: https://www.manning.com/books/writing-for-developers
[2]: https://github.com/sealambda/unit-text
[3]: https://www.sealambda.com/blog/this-post-passed-unit-tests/
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python unit-testing discussion
Python unit-testing related posts
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Testando código que chama serviços da AWS
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How ReportPortal "Made" Pytest Run Twice
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Local Variables as Accidental Breadcrumbs for Faster Debugging
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Setting up my own landing zone on AWS
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Integrating Lab Equipment into pytest-Based Tests
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The Uncreative Software Engineer's Compendium to Testing
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pytest VS vedro - a user suggested alternative
2 projects | 16 Jul 2023 -
A note from our sponsor - Sevalla
sevalla.com | 1 Sep 2025
Index
What are some of the best open-source unit-testing projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | pytest | 13,023 |
| 2 | PlatformIO | 8,522 |
| 3 | django-jenkins | 940 |
| 4 | dirty-equals | 902 |
| 5 | LLM-Finetuning-Toolkit | 854 |
| 6 | deepstate | 837 |
| 7 | pytest-flask | 497 |
| 8 | testbook | 428 |
| 9 | kaizen | 294 |
| 10 | mutahunter | 280 |
| 11 | cuallee | 202 |
| 12 | databricks-nutter-repos-demo | 153 |
| 13 | CURE | 110 |
| 14 | drf-api-action | 100 |
| 15 | callee | 88 |
| 16 | aws-openai | 66 |
| 17 | pytypest | 59 |
| 18 | data-structures-for-teaching | 53 |
| 19 | unit-text | 40 |
| 20 | GitHub-Stalker | 36 |
| 21 | parametrize_from_file | 22 |
| 22 | pymox | 14 |
| 23 | synphage | 13 |
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