Missing package: blosc2

[xmatthias]

Package name

blosc2

Package version

3.0.0

PyPI URL

https://pypi.org/project/blosc2/

piwheels URL

https://www.piwheels.org/project/blosc2/

Python version

• Python 3.9
• Python 3.11

I am aware this is the issue tracker for a Python package index specifically for Raspberry Pi

• Yes

I have checked for duplicate issues

• Yes

I am the maintainer

• Yes

More information

Blosc2 3.0.0 wheels are missing currently
Considering it's a major update, i assume something in the build process changed which requires some changes to make it work again.

[bennuttall]

It's failing because the build process relies on installing dependencies from GitHub which we don't permit:

2024-12-16T12:52:45,663   Cloning into 'blosc2-src'...
2024-12-16T12:52:45,664   fatal: transport 'https' not allowed
2024-12-16T12:52:45,665   Cloning into 'blosc2-src'...
2024-12-16T12:52:45,666   fatal: transport 'https' not allowed
2024-12-16T12:52:45,666   Cloning into 'blosc2-src'...
2024-12-16T12:52:45,667   fatal: transport 'https' not allowed
2024-12-16T12:52:45,667   -- Had to git clone more than once: 3 times.
2024-12-16T12:52:45,668   CMake Error at blosc2-subbuild/blosc2-populate-prefix/tmp/blosc2-populate-gitclone.cmake:39 (message):
2024-12-16T12:52:45,669     Failed to clone repository: 'https://github.com/Blosc/c-blosc2'

I suggest you contact the maintainers about this.

[xmatthias]

Sure thing - i did this in Blosc/python-blosc2#354.

@bennuttall I'm not sure i understand the issue if i'm honest.
what's better / worse when downloading from github.com vs. downloading from an alternative source, like "blosc.com" (for example)?
The underlying C library will be necessary either way ... and raspbian will not have this in many instances.

Maybe you've got a link to some documentation about the guidelines as to what's allowed / what isn't?

[MichaIng]

The point here is that Python builds should not rely on downloading additional 3rd sources at all. If needed, they should be added to the sdist (source package on PyPI) transparently, and e.g. as submodule to the source code repository.

[xmatthias]

I personally no longer have the need for this - as we dropped support for hdf5 for more modern alternatives (arrow, parquet) - not least because of the installation problems with both hdf5 and it's dependencies (blosc2 specifically).

Feel free to close this if you feel it's irrelevant - or leave it open if it can serve as information for future readers.

[MichaIng]

The package is still well maintained, so I guess if we close this, a new one would be opened some time later. I added a new label for these cases, there is a number of packages affected, so those can be easier identified and reviewed. And if policy changes, the packages to reschedule can be easily found.