On 18. 02. 22 1:37, Sérgio Basto wrote:
Hi,
Can someone help me ?
https://src.fedoraproject.org/rpms/opencv/blob/rawhide/f/opencv.spec
have py_provides but
https://bugzilla.redhat.com/show_bug.cgi?id=2054951
Hi Sérgio,
for some reason, you message ended in my Spam box. Sorry for a delayed response.
First of all, %py_provides has nothing to do with python3dist(opencv-python)
Provides.
%py_provides takes a given *alternative* name (such as python3-opencv) and
turns it into other names (such as python-opencv and python3.10-opencv). On a
package already named python3-opencv, you don't need to use %py_provides, it
does nothing.
OTOH python3dist(opencv-python) would only be generated if the package actually
provided a Python opencv-python package, in a Python sense. I.e. when you dnf
install python3-opencv and run "pip list", do you see opencv-python listed? If
you do, but the python3dist(opencv-python) provide is missing, there is bug in
our generators. If you don't see opencv-python listed, the package MUST NOT
provide python3dist(opencv-python). The provide literally means "Python tools
will consider this package is opencv-python".
Looking at the linked bugzilla, it seems to me that the package provides no
Python metadata at all, only the importable module:
/usr/lib64/python3.10/site-packages/cv2.cpython-310-x86_64-linux-gnu.so
In order to provide the actual metadata you would need to create and install
dist-info/egg-info directory.
However, it appears to me that the opencv-python package is actually
https://github.com/opencv/opencv-python and not what we are shipping in Fedora
as python3-opencv.
This is a weird variant of a missing dependency. In Fedora, we don't package
opencv-python at all. Packages that require python3dist(opencv-python) have a
missing dependency. But that dependency can be technically substituted by our
pytohn3-opencv package, however that requires patching the dependent package
not to require opencv-python and instead add the dependency for python3-opencv
on the RPM level manually.
Alternatively, we could package opencv-python to Fedora and patch it to require
and use python3-opencv, to avoid bundling/duplication.
Either way, there is no easy solution, this is where the Python ecosystem
clashes with the RPM ecosystem instead of cooperating.
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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