pyproj stopped from being installed on alpine image due to new cython release

[akashdiware]

We have been running python 3.10 with pyproj package for a while on alpine 3.17 image.
It's working with the old cython release.

I assume it's failing due to recent release of cython?

[snowman2]

A fix has been added for cython 3: #1321

I believe this should work for current versions of pyproj:

python -m pip install 'cython<3'
python -m pip install --no-use-pep517 pyproj

To install the version with the fix implemented:

python -m pip install pyproj@git+https://github.com/pyproj4/pyproj.git@main

[akashdiware]

Yes this approach is working until to get a permanent fix

[lucifermorn]

Can there be a release or a temporary branch for this update? If I create an image release 3.6.0 is pulled without the last changes.

[akashdiware]

@snowman2 do you have any details on when it will be available as a pip package? If yes please share

[snowman2]

Here is the 3.6.1 milestone: https://github.com/pyproj4/pyproj/milestone/11. With current dependencies, it is expected to arrive sometime at the end of September or beginning of October.