Publish function with poetry instead of requirements.txt

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Publish function with poetry instead of requirements.txt

Gilberto Diaz 41

I have several functions within an Azure Function App. I have several dependencies I'm utilizing and I decided to use poetry instead of pip. That left me with a poetry.lock file instead of requirements.txt. After running...

$ func azure functionapp publish my-project
Getting site publishing info...
requirements.txt is not found. requirements.txt is required for python function apps. Please make sure to generate one before publishing.

Is it that poetry.lock is not supported at all or there is a way to deploy utilizing poetry?

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Answer 1

Samara Soucy - MSFT 5,141

Pip is used in Azure in order to build your project, and poetry is not currently supported there. By building the project locally you can use poetry instead. The main downside is that it means that the upload will be larger since you are including both your source and the dependencies. Specifically how to set this flag will depend on your deployment pipeline, but if you are using functions core tools you can use the --build local flag: func azure functionapp publish <APP_NAME> --build local

Gilberto Diaz 41 Reputation points

2021-11-18T02:43:56.62+00:00

Hi Samara,

I got what you are saying. A work around for me was to $ cat pyproject.toml and then $ echo "azure-functions==1.8.0 >> requirements.txt and did that for each [tool.poetry.dependencies]. I'm leaving out all [tool.poetry.dev-dependencies] for now.

Are there any plans for supporting poetry in the future?
Gilberto Diaz 41 Reputation points

2021-11-18T19:15:04.287+00:00

There is something I don't understand. Given that Azure requires requirements.txt I decided to keep using poetry but to use and export from poetry.lock file into requirements.txt with a command poetry provides: poetry export -f requirements.txt --output requirements.txt. Given that I'm utilizing Python and Python doesn't run in Windows in Azure -- Why Azure has as a dependency pywin32 in a python function?. I'm saying that because after doing the export from poetry and trying to publish I get an error that pywin32 can't be found. I had to go to requirements.txt and manually remove pywin32.

Is there a reason why a Python function that is going to run in Linux -- why we have pywin32 as dependency?

Answer 2

Shah, Mit 0

Is there an update to this thread?

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Publish function with poetry instead of requirements.txt

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