“Using Alpine can make Python Docker builds 50× slower”
pythonspeed.com/articles/alpin

The title could have been “pre-built binaries such as ‘wheels’ aren’t portable”, but that’s nothing new.

(HT to zimoun)

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This Docker/pip/wheel story is a prime example of piling layer on top of layer, completely losing sight of the implications, just to eventually add another layer or two to address emerging problems.

Binary compatibility issues have been a concern since binaries came into existence and is rediscovered with the hacks of pip, CONDA, & co.

I was actually blissfully ignorant of the magnitude of the hack that wheels are until recently:
hpc.guix.info/blog/2021/09/wha

multi-stage builds are a hack to work around the fact that Docker is a terrible build system: unlike good’ol ‘make’, it can’t even distinguish between inputs and outputs.

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