App platform error while deploying python/flask app - backports.zoneinfo

Hello, I am trying to deploy my Python/Flask app using digitalocen’s app platform. This is my first time

I am getting below error with python version - 3.10.4

[2022-05-02 04:33:16] Failed to build backports.zoneinfo

[2022-05-02 04:33:16] ERROR: Could not build wheels for backports.zoneinfo, which is required to install pyproject.toml-based projects

[2022-05-02 04:33:16] ERROR: failed to build: exit status 1

Try one - As per below link, I tried to setup ryntime.txt with python-3.8.10


error - i got from digitalocean app platform - deployment

Requested runtime (��python-3.8.10) is not available for this stack (heroku-18).

Can someone suggest the resolution for this error please?

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For now the issue has been resolved by removing backports.zoneinfo from requirement.txt. App seems to work fine after removing this library :)

Not an intelligent solution, but it works and take me to the next roadblock

I was facing the same error while creating my container. I solved the error by using the exact version of my Python venv i.e. 3.8.9

Earlier for the image, I was using 3.8-alpine for a lighter version of the image. But, it wasn’t working out for me and got the same error as yours.

Hope this helps! Thanks.

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