Error after Poetry v1.1.0 update as default version about python-poetry-buildpack HOT 10 CLOSED

FYI, we have bumped Poetry to 1.1.2 - requirements.txt generation now works, but there are still problems with our use cases, which we are still investigating. Apparently dependency versions are not resolved correctly for git dependencies with the new upgrade.

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Looks like a fix is imminent in python-poetry/poetry#3119.

@zyv thanks for the hotfix and everything you've done to get this sorted out.

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I have the same problem

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Same here, this is blocking deploys with multiple python versions.

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Hi folks,

Sorry about that! It seems to be a bug in the latest version of Poetry - the export code for requirements.txt has been reworked and apparently git dependencies are no longer properly supported.

I have proposed a fix (see python-poetry/poetry#3089), but I didn't even have time to test it. If any of you have the capacity to help out, please bear with poetry maintainers. Sadly, our capacity is extremely limited at present.

If you need a workaround, please pin the poetry version as in #11 - this way you don't have to rely on our defaults and have it under your own control. Of course, this also means that you'll have to bump it later yourself when you see fit.

Z.

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Blocked by python-poetry/poetry#3100.

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I don't have any git dependencies, it also wasn't a problem with the versions.
Heroku updated the version to 3.8.6. I did as well. didn't change it.

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@rvanlaar our current plan is to wait for 1.1.2 and then bump the version in the buildpack again. You can always pin poetry to whatever version that works for you as described in the README.

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Thanks for the quick response.

I got it back to work.

I've pinned poetry to 1.1.1 and created the runtime.txt with contents: python-3.8.6

heroku config:set DISABLE_POETRY_CREATE_RUNTIME_FILE=1
heroku config:set POETRY_VERSION=1.1.1

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Hey folks,

We have hotfixed the support for nested VCS dependencies, since we don't know when the new version including a proper fix will be released. Hopefully everything is working for you now. At least all our use cases are now covered.

Sorry for the mess, I guess we've just got spoiled by Poetry released being well-tested and not causing too much breakage... but this major upgrade was quite a disaster :(

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