Tiny TIL: I just figured out how to run pytest with a different Python version against my pyproject.toml/setup.py projects using uv run
uv run --python 3.12 --with '.[test]' pytest
til.simonwillison.net/pytest/pytes...
uv run --python 3.12 --with '.[test]' pytest
til.simonwillison.net/pytest/pytes...
Running pytest against a specific Python version with uv run
While working on this issue I figured out a neat pattern for running the tests for my project locally against a specific Python version using uv run :
til.simonwillison.net
February 4, 2025 at 10:59 PM
Tiny TIL: I just figured out how to run pytest with a different Python version against my pyproject.toml/setup.py projects using uv run
uv run --python 3.12 --with '.[test]' pytest
til.simonwillison.net/pytest/pytes...
uv run --python 3.12 --with '.[test]' pytest
til.simonwillison.net/pytest/pytes...
They also told me I could not script automated testing. I taught myself Python in 15 hours and built a pytest framework behind their back, because we had no regression or smoke tests at the time.
September 21, 2026 at 11:41 PM
They also told me I could not script automated testing. I taught myself Python in 15 hours and built a pytest framework behind their back, because we had no regression or smoke tests at the time.
I gotta brush up on pytest and some go syntax idk
September 22, 2026 at 8:23 PM
I gotta brush up on pytest and some go syntax idk
pytest-mock is currently the #3 top pytest plugin.
It simplifies mocking in pytest.
Why do we even need to mock? That’s covered in the episode.
It simplifies mocking in pytest.
Why do we even need to mock? That’s covered in the episode.
January 31, 2025 at 6:44 PM
pytest-mock is currently the #3 top pytest plugin.
It simplifies mocking in pytest.
Why do we even need to mock? That’s covered in the episode.
It simplifies mocking in pytest.
Why do we even need to mock? That’s covered in the episode.
Layer 4 is the 10-liner: assert tools == EXPECTED_TOOLS. Now restart_deployment can't slip in via a refactor; a human must type its name into a reviewed file.
Full pytest code + CI:
https://devtocash.com/blog/2026-09-09-testing-mcp-servers-pytest-ops-ai-agents
#DevOps #MCP
Full pytest code + CI:
https://devtocash.com/blog/2026-09-09-testing-mcp-servers-pytest-ops-ai-agents
#DevOps #MCP
How to Test an MCP Server: pytest Suites for Ops AI Tools That Touch Real Infra
How to test an MCP server with pytest: in-memory protocol tests, guardrail unit tests, a prompt-injection suite, and a tool-surface contract gate in CI.
devtocash.com
September 19, 2026 at 6:06 AM
Layer 4 is the 10-liner: assert tools == EXPECTED_TOOLS. Now restart_deployment can't slip in via a refactor; a human must type its name into a reviewed file.
Full pytest code + CI:
https://devtocash.com/blog/2026-09-09-testing-mcp-servers-pytest-ops-ai-agents
#DevOps #MCP
Full pytest code + CI:
https://devtocash.com/blog/2026-09-09-testing-mcp-servers-pytest-ops-ai-agents
#DevOps #MCP
🐍📩 frozendict, pytest Plugins, re.prefixmatch(), and More at Pycoders Weekly Issue 753 pycoders.com/issues/753
September 25, 2026 at 1:20 AM
🐍📩 frozendict, pytest Plugins, re.prefixmatch(), and More at Pycoders Weekly Issue 753 pycoders.com/issues/753
🎙️ Just published a new episode of Test & Code: pytest-md and pytest-md-report : Markdown reports for pytest. Have a listen:
pytest-md and pytest-md-report : Markdown reports for pytest
Markdown reports as either text or markdown...
share.transistor.fm
March 1, 2025 at 1:38 AM
🎙️ Just published a new episode of Test & Code: pytest-md and pytest-md-report : Markdown reports for pytest. Have a listen:
We have expanded the pytest plugins section: python-basics-tutorial.readthedocs.io/en/latest/te...
#Python #Testing #pytest
#Python #Testing #pytest
Plugins
As powerful as pytest is, it can do even more when we add plugins. The pytest codebase is designed to allow customisation and extensions, and there are hooks that allow changes and improvements thr...
python-basics-tutorial.readthedocs.io
December 5, 2024 at 8:45 AM
We have expanded the pytest plugins section: python-basics-tutorial.readthedocs.io/en/latest/te...
#Python #Testing #pytest
#Python #Testing #pytest
📰🐍 Get the best Python links of the week: PyCoder’s Weekly Issue #753: frozendict, pytest Plugins, re.prefixmatch(), and More (2026-09-22) pycoders.com/issues/753
PyCoder’s Weekly | Issue #753
frozendict, pytest Plugins, re.prefixmatch(), and More
pycoders.com
September 22, 2026 at 7:45 PM
📰🐍 Get the best Python links of the week: PyCoder’s Weekly Issue #753: frozendict, pytest Plugins, re.prefixmatch(), and More (2026-09-22) pycoders.com/issues/753
Shiny for Python 1.8 is out! 🎉 Test your app's server logic without a browser 🪄
test_server() runs your app in memory: set inputs, let the reactive graph settle, assert on outputs. Plain, synchronous pytest.
Also: ui.page_html() and session.allow_reconnect().
opensource.posit.co/blog/2026-09...
test_server() runs your app in memory: set inputs, let the reactive graph settle, assert on outputs. Plain, synchronous pytest.
Also: ui.page_html() and session.allow_reconnect().
opensource.posit.co/blog/2026-09...
September 22, 2026 at 7:17 PM
Shiny for Python 1.8 is out! 🎉 Test your app's server logic without a browser 🪄
test_server() runs your app in memory: set inputs, let the reactive graph settle, assert on outputs. Plain, synchronous pytest.
Also: ui.page_html() and session.allow_reconnect().
opensource.posit.co/blog/2026-09...
test_server() runs your app in memory: set inputs, let the reactive graph settle, assert on outputs. Plain, synchronous pytest.
Also: ui.page_html() and session.allow_reconnect().
opensource.posit.co/blog/2026-09...
🚀 Introducing Zed v0.163!
Today's stable release brings a lot of improvements for those working in Python 🐍:
Zed now supports pytest-based test discovery and runnables, in addition to unittest.
Today's stable release brings a lot of improvements for those working in Python 🐍:
Zed now supports pytest-based test discovery and runnables, in addition to unittest.
November 27, 2024 at 6:32 PM
🚀 Introducing Zed v0.163!
Today's stable release brings a lot of improvements for those working in Python 🐍:
Zed now supports pytest-based test discovery and runnables, in addition to unittest.
Today's stable release brings a lot of improvements for those working in Python 🐍:
Zed now supports pytest-based test discovery and runnables, in addition to unittest.
pytest-check 2.5.0 released.
It's gotten some recent attention from the community and I'm very grateful.
Thanks mfulgo for adding type hints. Super awesome.
And thanks to taylermulligan for fixing a longtime issue that we weren't respecting --runxfail.
github.com/okken/pytest...
#Python #pytest
It's gotten some recent attention from the community and I'm very grateful.
Thanks mfulgo for adding type hints. Super awesome.
And thanks to taylermulligan for fixing a longtime issue that we weren't respecting --runxfail.
github.com/okken/pytest...
#Python #pytest
GitHub - okken/pytest-check: A pytest plugin that allows multiple failures per test.
A pytest plugin that allows multiple failures per test. - okken/pytest-check
github.com
February 13, 2025 at 2:25 AM
pytest-check 2.5.0 released.
It's gotten some recent attention from the community and I'm very grateful.
Thanks mfulgo for adding type hints. Super awesome.
And thanks to taylermulligan for fixing a longtime issue that we weren't respecting --runxfail.
github.com/okken/pytest...
#Python #pytest
It's gotten some recent attention from the community and I'm very grateful.
Thanks mfulgo for adding type hints. Super awesome.
And thanks to taylermulligan for fixing a longtime issue that we weren't respecting --runxfail.
github.com/okken/pytest...
#Python #pytest
Just had my boss ask me about a pytest plugin I wrote.
He: Are you familiar with this plugin?
me: Yes. 😁
He: Are you familiar with this plugin?
me: Yes. 😁
April 9, 2025 at 7:38 PM
Just had my boss ask me about a pytest plugin I wrote.
He: Are you familiar with this plugin?
me: Yes. 😁
He: Are you familiar with this plugin?
me: Yes. 😁
Just made a new pytest-rich release:
github.com/nicoddemus/p...
The situation is still the same: the project is looking for new maintainers, if this is something you are interested in, please speak up! 😁
#pytest #python
github.com/nicoddemus/p...
The situation is still the same: the project is looking for new maintainers, if this is something you are interested in, please speak up! 😁
#pytest #python
GitHub - nicoddemus/pytest-rich: pytest + rich integration (proof of concept)
pytest + rich integration (proof of concept). Contribute to nicoddemus/pytest-rich development by creating an account on GitHub.
github.com
December 12, 2024 at 11:01 PM
Just made a new pytest-rich release:
github.com/nicoddemus/p...
The situation is still the same: the project is looking for new maintainers, if this is something you are interested in, please speak up! 😁
#pytest #python
github.com/nicoddemus/p...
The situation is still the same: the project is looking for new maintainers, if this is something you are interested in, please speak up! 😁
#pytest #python
Exploring VS Code compatibility with different
@pytest.org plugins this week- got a plugin which is failing? Add a comment 👇
github.com/microsoft/vs...
also thanks @brianokken.bsky.social for this top plugin list I'm using as a jumping point pythontest.com/top-pytest-p...
@pytest.org plugins this week- got a plugin which is failing? Add a comment 👇
github.com/microsoft/vs...
also thanks @brianokken.bsky.social for this top plugin list I'm using as a jumping point pythontest.com/top-pytest-p...
Top pytest Plugins
This is intended to find the most popular pytest plugins, as plugins usually have “pytest” in the name.
The list is generated from hugovk’s Top PyPI Packages, which is filtered for “pytest”. Many popu...
pythontest.com
November 19, 2024 at 5:51 PM
Exploring VS Code compatibility with different
@pytest.org plugins this week- got a plugin which is failing? Add a comment 👇
github.com/microsoft/vs...
also thanks @brianokken.bsky.social for this top plugin list I'm using as a jumping point pythontest.com/top-pytest-p...
@pytest.org plugins this week- got a plugin which is failing? Add a comment 👇
github.com/microsoft/vs...
also thanks @brianokken.bsky.social for this top plugin list I'm using as a jumping point pythontest.com/top-pytest-p...
Tiny TIL: I just figured out how to run pytest with a different Python version against my pyproject.toml/setup.py projects using uv run
uv run --python 3.12 --with '.[test]' pytest
https://til.simonwillison.net/pytest/pytest-uv
uv run --python 3.12 --with '.[test]' pytest
https://til.simonwillison.net/pytest/pytest-uv
Running pytest against a specific Python version with uv run
While working on this issue I figured out a neat pattern for running the tests for my project locally against a specific Python version using uv run :
til.simonwillison.net
February 4, 2025 at 10:59 PM
Tiny TIL: I just figured out how to run pytest with a different Python version against my pyproject.toml/setup.py projects using uv run
uv run --python 3.12 --with '.[test]' pytest
https://til.simonwillison.net/pytest/pytest-uv
uv run --python 3.12 --with '.[test]' pytest
https://til.simonwillison.net/pytest/pytest-uv
Весь день медленно разгонялась а потом как написала всякий код.
Pytest ❤️ его придумали великие люди.
Pytest ❤️ его придумали великие люди.
August 5, 2026 at 4:05 PM
Весь день медленно разгонялась а потом как написала всякий код.
Pytest ❤️ его придумали великие люди.
Pytest ❤️ его придумали великие люди.
Some nice #pytest techniques here as @brianokken.bsky.social updates my "Testing some tidbits" post: pythontest.com/pytest/testi...
Testing some tidbits with pytest
I noticed a fun post by Ned Batchelder called Testing some tidbits.
The post looks at different ways to see if a string has only 0 or 1 in it.
He posted a few ways on Bluesky/Mastodon and got a bunch ...
pythontest.com
December 17, 2024 at 11:42 AM
Some nice #pytest techniques here as @brianokken.bsky.social updates my "Testing some tidbits" post: pythontest.com/pytest/testi...
Life changing:
pytest-randomly
pytest-network
pytest-snapshot
Good QoL
pytest-cov
pytest-xdist
pytest-sugar
pytest-mock - LLMs like this library a lot
pytest-unused-fixtures
pytest-asyncio
pytest-randomly
pytest-network
pytest-snapshot
Good QoL
pytest-cov
pytest-xdist
pytest-sugar
pytest-mock - LLMs like this library a lot
pytest-unused-fixtures
pytest-asyncio
January 9, 2025 at 3:27 AM
Life changing:
pytest-randomly
pytest-network
pytest-snapshot
Good QoL
pytest-cov
pytest-xdist
pytest-sugar
pytest-mock - LLMs like this library a lot
pytest-unused-fixtures
pytest-asyncio
pytest-randomly
pytest-network
pytest-snapshot
Good QoL
pytest-cov
pytest-xdist
pytest-sugar
pytest-mock - LLMs like this library a lot
pytest-unused-fixtures
pytest-asyncio
For all 3 of you that are trying to use pytest with uv, I learned this incantation that helps pytest use your project's uv virtual environment:
uv add pytest --dev
uv run pytest
(not `uvx pytest`, as I first assumed)
uv add pytest --dev
uv run pytest
(not `uvx pytest`, as I first assumed)
January 16, 2025 at 12:35 PM
For all 3 of you that are trying to use pytest with uv, I learned this incantation that helps pytest use your project's uv virtual environment:
uv add pytest --dev
uv run pytest
(not `uvx pytest`, as I first assumed)
uv add pytest --dev
uv run pytest
(not `uvx pytest`, as I first assumed)
Don’t mind me, I’m just over here playing with pytest plugins
January 24, 2025 at 2:36 AM
Don’t mind me, I’m just over here playing with pytest plugins
pytest 9.0 just released!
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Changelog - pytest documentation
docs.pytest.org
November 8, 2025 at 8:07 PM
pytest 9.0 just released!
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Notable changes:
* subtests support
* Native TOML configuration
* Progress output in the terminal taskbar
And others. Check the changelog: docs.pytest.org/en/stable/ch...
Alguém procurando emprego 100% remoto?
Procuro Senior com MUITA experiência em
O básico: Inglês, Linux, CI, Git, Containers
O Essencial: Python, Django, Pytest, Timezone BRT, CET ou EST
O Extra: Kubernetes, Openshift, Cloud
Manda mensagem apenas se vc se enquadra nos tópicos acima.
Procuro Senior com MUITA experiência em
O básico: Inglês, Linux, CI, Git, Containers
O Essencial: Python, Django, Pytest, Timezone BRT, CET ou EST
O Extra: Kubernetes, Openshift, Cloud
Manda mensagem apenas se vc se enquadra nos tópicos acima.
April 15, 2025 at 11:38 AM
Alguém procurando emprego 100% remoto?
Procuro Senior com MUITA experiência em
O básico: Inglês, Linux, CI, Git, Containers
O Essencial: Python, Django, Pytest, Timezone BRT, CET ou EST
O Extra: Kubernetes, Openshift, Cloud
Manda mensagem apenas se vc se enquadra nos tópicos acima.
Procuro Senior com MUITA experiência em
O básico: Inglês, Linux, CI, Git, Containers
O Essencial: Python, Django, Pytest, Timezone BRT, CET ou EST
O Extra: Kubernetes, Openshift, Cloud
Manda mensagem apenas se vc se enquadra nos tópicos acima.