Bug 2460066

Summary: python-cartopy: FTBFS in Fedora Rawhide: 165 tests fail
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: python-cartopyAssignee: Elliott Sales de Andrade <quantum.analyst>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: rawhideCC: fti-bugs, josdekloe, python-packagers-sig, quantum.analyst
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
URL: https://koschei.fedoraproject.org/package/python-cartopy
Whiteboard:
Fixed In Version: python-cartopy-0.25.0-11.fc45 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-02 05:32:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2412434, 2433833, 2433836, 2485738, 2485941    

Description Karolina Surma 2026-04-21 13:28:22 UTC
Description of problem:
Package python-cartopy fails to build from source in Fedora Rawhide.

Version-Release number of selected component (if applicable):
0.25.0-6.fc44

Steps to Reproduce:
koji build --scratch f45 python-cartopy-0.25.0-6.fc44.src.rpm

Additional info:
This package is tracked by Koschei. See:
https://koschei.fedoraproject.org/package/python-cartopy

Reproducible: Always

Actual Results:
There's 165 failed tests with a good chunk of them having this kind of traceback:

____________________________ test_global_map[OSGB] _____________________________
[gw5] linux -- Python 3.14.4 /usr/bin/python3
Error: Image files did not match.
  RMS Value: 36.86186161423032
  Expected:  
    /tmp/tmpv2ffeyrc/cartopy.tests.mpl.test_mpl_integration.test_global_map_OSGB/baseline.png
  Actual:    
    /tmp/tmpv2ffeyrc/cartopy.tests.mpl.test_mpl_integration.test_global_map_OSGB/result.png
  Difference:
    /tmp/tmpv2ffeyrc/cartopy.tests.mpl.test_mpl_integration.test_global_map_OSGB/result-failed-diff.png
  Tolerance: 
    0.5

Comment 1 Karolina Surma 2026-06-06 18:21:43 UTC
*** Bug 2485793 has been marked as a duplicate of this bug. ***

Comment 2 Jos de Kloe 2026-06-06 21:05:29 UTC
These failing tests are very similar to what I see for the pygrib package. There they are related to a change in the proj package. After updating proj from version 9.7.1 to 9.8.0 some projections changed slightly, causing these image comparisons to fail.

Comment 3 Fedora Fails To Install 2026-06-14 08:31:16 UTC
Hello,

Please note that this comment was generated automatically by https://forge.fedoraproject.org/releng/tooling/src/branch/main/release-process/bug-filing/follow-policy/follow_policy.py
If you feel that this output has mistakes, please open an issue at https://forge.fedoraproject.org/releng/tickets/issues

This package fails to install and maintainers are advised to take one of the following actions:

 - Fix this bug and close this bugzilla once the update makes it to the repository.
   (The same script that posted this comment will eventually close this bugzilla
   when the fixed package reaches the repository, so you don't have to worry about it.)

or

 - Move this bug to ASSIGNED if you plan on fixing this, but simply haven't done so yet.

or

 - Orphan the package if you no longer plan to maintain it.


If you do not take one of these actions, the process at https://docs.fedoraproject.org/en-US/fesco/Fails_to_build_from_source_Fails_to_install/#_package_removal_for_long_standing_ftbfs_and_fti_bugs will continue.
This package may be orphaned in 7+ weeks.
This is the first reminder (step 3) from the policy.

Don't hesitate to ask for help on https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/ if you are unsure how to fix this bug.

Comment 4 Fedora Fails To Install 2026-07-05 20:25:59 UTC
Hello,

Please note that this comment was generated automatically by https://forge.fedoraproject.org/releng/tooling/src/branch/main/release-process/bug-filing/follow-policy/follow_policy.py
If you feel that this output has mistakes, please open an issue at https://forge.fedoraproject.org/releng/tickets/issues

This package fails to install and maintainers are advised to take one of the following actions:

 - Fix this bug and close this bugzilla once the update makes it to the repository.
   (The same script that posted this comment will eventually close this bugzilla
   when the fixed package reaches the repository, so you don't have to worry about it.)

or

 - Move this bug to ASSIGNED if you plan on fixing this, but simply haven't done so yet.

or

 - Orphan the package if you no longer plan to maintain it.


If you do not take one of these actions, the process at https://docs.fedoraproject.org/en-US/fesco/Fails_to_build_from_source_Fails_to_install/#_package_removal_for_long_standing_ftbfs_and_fti_bugs will continue.
This package may be orphaned in 4+ weeks.
This is the second reminder (step 4) from the policy.

Don't hesitate to ask for help on https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/ if you are unsure how to fix this bug.

Comment 5 Elliott Sales de Andrade 2026-07-05 21:47:37 UTC
Should be able to look into this this week.