Can't install in Docker Python:3.6-alpine

[ghost]

I install on docker alpine and error occurred as below :

Does anyone have this problem then help me to fix it ? Thanks for reading !

[inkhey]

Hello !

We haven't tested yet preview-generator on official python docker. We run it on debian based system. Current preview-generator required vtk by default, it should probably be a optional requirement later. Vtk package does need some build package to be installed, it's not a pure python package.

Your error message is unclear as it seems that the docker cannot find vtk package, which does exist : https://pypi.org/project/vtk/9.0.0/.

Some tips you can try to solve the issue:

• Try with a debian based docker (maybe python:3.6 can work?), don't really know how non pure-python package work with alpine.
• update pip and setuptools as explained in the error pip install --upgrade pip setuptools wheel (this solve most of the issue you can have with python packaging).
• To verify if the issue is vtk only based, you can try Python:3.8-alpine docker, vtk is not installed as preview-generator dependency on python 3.8 because it wasn't working until now : see :https://github.com/algoo/preview-generator/blob/d8dd510dc8ecccaf8631e23d55e58029055aa9be/setup.py#L58

[ghost]

@inkhey Thank you very much for your answer. I'm trying on Python:3.8-alpine and hope It can work .