slim-buster image doesn't work properly (after 3.9)

[MikkelHJuul]

works:

FROM python:3.8-slim-buster

RUN pip install confluent_kafka

does not work

FROM python:3.9-slim-buster

RUN pip install confluent_kafka

throws errors on missing gcc
when after installing gcc, it throws errors on librdkafka, then after installing that you try installing confluent_platform. THEN you figure out that it's the python docker image thats the issue, not your dependencies...

attachment to document my steps to reproduce (using a gitlab-runner and gcr.io/kaniko)

error.log

[wglambert]

https://github.com/docker-library/docs/tree/master/python#pythonversion

For python:slim you'll want to install gcc, do pip install, and then uninstall gcc in the same layer #488 (comment)

[tianon]

It sounds like confluent_kafka might not support Python 3.9 (yet?)

[wglambert]

Yeah seems that way if the latest release is July and 3.9 was released October 5. And the gcc error would be due to the manylinux1 wheels not being compatible, such as if the version is unsupported

I don't see anything in their issues mentioning 3.9

[MikkelHJuul]

I will redirect this issue to confluent_kafka instead. The error messages just sound relatively system-ish, to have been issues with confluent, I apologize for hitting the wrong forum.