Re: "Broken dependencies" for anything depending on matplotlib

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>> > blosc has broken dependencies in the rawhide tree:
>> > On aarch64:
>> >     blosc-bench-1.10.1-1.fc26.aarch64 requires python-matplotlib
>> > Please resolve this as soon as possible.
>>
>> Hi,
>>
>> tl;dr: in case you see a similar message, I think it can be ignored for now.
>>
>> A few days ago I got a whole bunch of similar messages, for many of my
>> python packages. matplotlib is a very standard and important module, so
>> I don't think it make sense to make support for it conditional.
>> It seems that Orion is trying to build python-matplotlib:
>> http://koji.fedoraproject.org/koji/taskinfo?taskID=15643133, and it fails
>> because python-scikit-image is missing. But the dependency on scikit-image
>> can probably be made conditional… so matplotlib should become available
>> and this problem should go away soonish.
>
> So there's a dependency loop between python-matplotlib and
> python-scikit-image (used by matplotlib for documentation). Building [1]
> matplotlib w/o python-scikit-image (with_html 0) unfortunately results
> in a test failure [2].

There's a FTBFS for matplotlib even without the dep loop. The dep loop
is actually due to the FTBFS of matplotlib on the import, I can assist
in fixing this if someone who knows more about it can fix the FTBFS. I
suspect, but aren't 100% sure, the tests failure is due to an
assumption about memory page size of 4K, on aarch64 (for Fedora at
least) it's actually 64K.

It might be easier to do a scratch build for test against F-25
arm.koji.fedoraproject.org as all the deps are there and you can see
the actual failure.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1365851
[2] http://arm.koji.fedoraproject.org/koji/packageinfo?packageID=7800


Peter
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