• #407 Back to the future, destination 3.14

  • 2024/10/28
  • 再生時間： 28 分
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#407 Back to the future, destination 3.14

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  • Topics covered in this episode: Python 3.14.0 alpha 1 is now availableuv supports dependency groupsdive: A tool for exploring each layer in a docker imagepytest-metadataExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest Course & Hello, pytest!Patreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.orgBrian: @brianokken@fosstodon.orgShow: @pythonbytes@fosstodon.org Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Monday at 10am PT. Older video versions available there too. Finally, if you want an artisanal, hand-crafted digest of every week of the show notes in email form? Add your name and email to our friends of the show list, we'll never share it. Michael #1: Python 3.14.0 alpha 1 is now available First of seven planned alpha releases.Many new features for Python 3.14 are still being planned and written. Among the new major new features and changes so far: PEP 649: deferred evaluation of annotationsImproved error messages Brian #2: uv supports dependency groups we covered dependency groups in episode 406as of 0.4.27, uv supports dependency groupsdocs show how to add dependencies with uv add --group also “The --dev, --only-dev, and --no-dev flags are equivalent to --group dev, --only-group dev, and --no-group dev respectively.”To install a group, uv pip install --group doesn’t work yet. It’s waiting for PyPA to decide on an interface for pip, and uv pip will use that interface.But sync works. $ uv init # create a pyproject.toml $ uv add --group foo pytest $ uv venv # create venv $ uv sync --group foo # will install all dependencies, including group "foo" Michael #3: dive: A tool for exploring each layer in a docker image via Mike FiedlerFeatures: Show Docker image contents broken down by layerIndicate what's changed in each layerEstimate "image efficiency"Quick build/analysis cyclesCI Integration Brian #4: pytest-metadata An incredibly useful plugin for adding, you guessed it, metadata, to your pytest results.Required for pytest-html but also useful on it’s ownAdds metadata to text output with --verbosexml output when using --junit-xml, handy for CI systems that support junit.xmlOther plugins depend on this and report in other ways, such as pytest-htmlBy default, already grabs Python versionPlatform infoList of installed packagesList of installed pytest pluginsYou can add your own metadataYou can access all metadata (and add to it) from tests, fixtures, and hook functions via a metadata fixture.This is in the Top pytest Plugins list, currently #5. Extras Brian: I’ve started filtering deprecated plugins from the pytest plugin list.I’m also going to start reviewing the list and pulling out interesting plugins as the topic of the next season of Test & Code. Michael: Pillow 11 is outpip install deutschlandTalk Python has a dedicated blog, please subscribe! Joke: Dog names
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Topics covered in this episode: Python 3.14.0 alpha 1 is now availableuv supports dependency groupsdive: A tool for exploring each layer in a docker imagepytest-metadataExtrasJokeWatch on YouTube About the show Sponsored by us! Support our work through: Our courses at Talk Python TrainingThe Complete pytest Course & Hello, pytest!Patreon Supporters Connect with the hosts Michael: @mkennedy@fosstodon.orgBrian: @brianokken@fosstodon.orgShow: @pythonbytes@fosstodon.org Join us on YouTube at pythonbytes.fm/live to be part of the audience. Usually Monday at 10am PT. Older video versions available there too. Finally, if you want an artisanal, hand-crafted digest of every week of the show notes in email form? Add your name and email to our friends of the show list, we'll never share it. Michael #1: Python 3.14.0 alpha 1 is now available First of seven planned alpha releases.Many new features for Python 3.14 are still being planned and written. Among the new major new features and changes so far: PEP 649: deferred evaluation of annotationsImproved error messages Brian #2: uv supports dependency groups we covered dependency groups in episode 406as of 0.4.27, uv supports dependency groupsdocs show how to add dependencies with uv add --group also “The --dev, --only-dev, and --no-dev flags are equivalent to --group dev, --only-group dev, and --no-group dev respectively.”To install a group, uv pip install --group doesn’t work yet. It’s waiting for PyPA to decide on an interface for pip, and uv pip will use that interface.But sync works. $ uv init # create a pyproject.toml $ uv add --group foo pytest $ uv venv # create venv $ uv sync --group foo # will install all dependencies, including group "foo" Michael #3: dive: A tool for exploring each layer in a docker image via Mike FiedlerFeatures: Show Docker image contents broken down by layerIndicate what's changed in each layerEstimate "image efficiency"Quick build/analysis cyclesCI Integration Brian #4: pytest-metadata An incredibly useful plugin for adding, you guessed it, metadata, to your pytest results.Required for pytest-html but also useful on it’s ownAdds metadata to text output with --verbosexml output when using --junit-xml, handy for CI systems that support junit.xmlOther plugins depend on this and report in other ways, such as pytest-htmlBy default, already grabs Python versionPlatform infoList of installed packagesList of installed pytest pluginsYou can add your own metadataYou can access all metadata (and add to it) from tests, fixtures, and hook functions via a metadata fixture.This is in the Top pytest Plugins list, currently #5. Extras Brian: I’ve started filtering deprecated plugins from the pytest plugin list.I’m also going to start reviewing the list and pulling out interesting plugins as the topic of the next season of Test & Code. Michael: Pillow 11 is outpip install deutschlandTalk Python has a dedicated blog, please subscribe! Joke: Dog names
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