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Description
Bug summary
Hi all, thanks for this useful library! Sadly, with texlive 20250308test_backend_pgf.py::test_rcupdate
image comparison fails in matplotlib 3.10.1. I don't have the images, as the tests ran on an external system.
Code for reproduction
run`test_backend_pgf.py::test_rcupdate`
Actual outcome
I am sorry, as I said, I don't have the images and the log is boring otherwise:
[ 503s] ________________________________ test_rcupdate _________________________________[ 503s] [ 503s] @needs_pgf_xelatex[ 503s] @needs_pgf_pdflatex[ 503s] @mpl.style.context('default')[ 503s] @pytest.mark.backend('pgf')[ 503s] def test_rcupdate():[ 503s] rc_sets = [{'font.family': 'sans-serif',[ 503s] 'font.size': 30,[ 503s] 'figure.subplot.left': .2,[ 503s] 'lines.markersize': 10,[ 503s] 'pgf.rcfonts': False,[ 503s] 'pgf.texsystem': 'xelatex'},[ 503s] {'font.family': 'monospace',[ 503s] 'font.size': 10,[ 503s] 'figure.subplot.left': .1,[ 503s] 'lines.markersize': 20,[ 503s] 'pgf.rcfonts': False,[ 503s] 'pgf.texsystem': 'pdflatex',[ 503s] 'pgf.preamble': ('\\usepackage[utf8x]{inputenc}'[ 503s] '\\usepackage[T1]{fontenc}'[ 503s] '\\usepackage{sfmath}')}][ 503s] tol = [0, 13.2] if _old_gs_version else [0, 0][ 503s] for i, rc_set in enumerate(rc_sets):[ 503s] with mpl.rc_context(rc_set):[ 503s] for substring, pkg in [('sfmath', 'sfmath'), ('utf8x', 'ucs')]:[ 503s] if (substring in mpl.rcParams['pgf.preamble'][ 503s] and not _has_tex_package(pkg)):[ 503s] pytest.skip(f'needs {pkg}.sty')[ 503s] create_figure()[ 503s] > compare_figure(f'pgf_rcupdate{i + 1}.pdf', tol=tol[i])[ 503s] [ 503s] /usr/lib64/python3.11/site-packages/matplotlib/tests/test_backend_pgf.py:142: [ 503s] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [ 503s] [ 503s] fname = 'pgf_rcupdate2.pdf', savefig_kwargs = {}, tol = 0[ 503s] [ 503s] def compare_figure(fname, savefig_kwargs={}, tol=0):[ 503s] actual = os.path.join(result_dir, fname)[ 503s] plt.savefig(actual, **savefig_kwargs)[ 503s] [ 503s] expected = os.path.join(result_dir, "expected_%s" % fname)[ 503s] shutil.copyfile(os.path.join(baseline_dir, fname), expected)[ 503s] err = compare_images(expected, actual, tol=tol)[ 503s] if err:[ 503s] > raise ImageComparisonFailure(err)[ 503s] E matplotlib.testing.exceptions.ImageComparisonFailure: Error: Image files did not match.[ 503s] E RMS Value: 4.23523981360686[ 503s] E Expected: [ 503s] E /home/abuild/rpmbuild/BUILD/python-matplotlib-test-3.10.1-build/matplotlib-3.10.1/result_images/test_backend_pgf/expected_pgf_rcupdate2_pdf.png[ 503s] E Actual: [ 503s] E /home/abuild/rpmbuild/BUILD/python-matplotlib-test-3.10.1-build/matplotlib-3.10.1/result_images/test_backend_pgf/pgf_rcupdate2_pdf.png[ 503s] E Difference:[ 503s] E /home/abuild/rpmbuild/BUILD/python-matplotlib-test-3.10.1-build/matplotlib-3.10.1/result_images/test_backend_pgf/pgf_rcupdate2_pdf-failed-diff.png[ 503s] E Tolerance: [ 503s] E 0[ 503s] [ 503s] /usr/lib64/python3.11/site-packages/matplotlib/tests/test_backend_pgf.py:34: ImageComparisonFailure
Expected outcome
tests pass
Additional information
No response
Operating system
openSUSE Tumbleweed
Matplotlib Version
3.10.1
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
from source (.tar.gz)