Improve error messages for invalid version in .python-version
#353
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This ports some of the recent error message improvements made in the classic Python buildpack to the CNB, plus some additional tweaks based on Honeycomb metrics for classic (which showed quite a bit of attempted usage of `.x` and `.*` style wildcards, which aren't valid syntax for the `.python-version` file). GUS-W-18346802.
runesoerensen
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Apr 23, 2025
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## heroku/python ### Removed - Removed support for the deprecated `runtime.txt` file. Python versions must now be specified using a `.python-version` file instead. ([#352](#352)) - Removed support for Ubuntu 20.04 (and thus Heroku-20 / `heroku/builder:20`). ([#358](#358)) ### Changed - Improved the error messages shown when `.python-version` contains an invalid Python version or stray invisible characters (such as ASCII control codes). ([#353](#353) and [#354](#354)) - Improved the error messages shown if I/O errors occur. ([#355](#355) and [#356](#356))
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## heroku/python ### Removed - Removed support for the deprecated `runtime.txt` file. Python versions must now be specified using a `.python-version` file instead. ([#352](heroku/buildpacks-python#352)) - Removed support for Ubuntu 20.04 (and thus Heroku-20 / `heroku/builder:20`). ([#358](heroku/buildpacks-python#358)) ### Changed - Improved the error messages shown when `.python-version` contains an invalid Python version or stray invisible characters (such as ASCII control codes). ([#353](heroku/buildpacks-python#353) and [#354](heroku/buildpacks-python#354)) - Improved the error messages shown if I/O errors occur. ([#355](heroku/buildpacks-python#355) and [#356](heroku/buildpacks-python#356))
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Backports the improvements made as part of: - heroku/buildpacks-python#352 - heroku/buildpacks-python#353 - heroku/buildpacks-python#354 - heroku/buildpacks-python#355 Plus: - applies similar changes to equivalent error messages that only exist in the classic buildpack (eg the Pipenv errors) - switches to use of contractions as per the CX team's style guidelines GUS-W-18225347. GUS-W-18421778.
edmorley
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Backports the error message/build output improvements made as part of: - heroku/buildpacks-python#352 - heroku/buildpacks-python#353 - heroku/buildpacks-python#354 - heroku/buildpacks-python#355 Plus: - applies similar changes to equivalent error messages that only exist in the classic buildpack (eg the Pipenv errors) - switches to use of contractions as per the CX team's style guidelines GUS-W-18225347. GUS-W-18421778.
edmorley
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May 2, 2025
Backports the error message/build output improvements made as part of: - heroku/buildpacks-python#352 - heroku/buildpacks-python#353 - heroku/buildpacks-python#354 - heroku/buildpacks-python#355 Plus: - applies similar changes to equivalent error messages that only exist in the classic buildpack (eg the Pipenv errors) - switches to use of contractions as per the CX team's style guidelines GUS-W-18225347. GUS-W-18421778.
edmorley
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May 2, 2025
Backports the error message/build output improvements made as part of: - heroku/buildpacks-python#352 - heroku/buildpacks-python#353 - heroku/buildpacks-python#354 - heroku/buildpacks-python#355 Plus: - applies similar changes to equivalent error messages that only exist in the classic buildpack (eg the Pipenv errors) - switches to use of contractions as per the CX team's style guidelines GUS-W-18225347. GUS-W-18421778.
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This ports some of the recent error message improvements made in the classic Python buildpack to the CNB, plus some additional tweaks based on Honeycomb metrics for classic (which showed quite a bit of attempted usage of
.xand.*style wildcards, which aren't valid syntax for the.python-versionfile).GUS-W-18346802.