Hi Guix, The package python-matplotlib fails to build during the check phase on i686-linux. The test failure appears to be deterministic:
--8<---------------cut here---------------start------------->8--- =================================== FAILURES =================================== _______________________ test_slider_horizontal_vertical ________________________ def test_slider_horizontal_vertical(): fig, ax = plt.subplots() slider = widgets.Slider(ax=ax, label='', valmin=0, valmax=24, valinit=12, orientation='horizontal') slider.set_val(10) assert slider.val == 10 # check the dimension of the slider patch in axes units box = slider.poly.get_extents().transformed(ax.transAxes.inverted()) > assert_allclose(box.bounds, [0, 0, 10/24, 1]) E AssertionError: E Not equal to tolerance rtol=1e-07, atol=0 E E Mismatch: 25% E Max absolute difference: 1.11022302e-16 E Max relative difference: 2.66453526e-16 E x: array([ 0.000000e+00, -2.310706e-18, 4.166667e-01, 1.000000e+00]) E y: array([0. , 0. , 0.416667, 1. ]) /gnu/store/8g8yfikj63wf0y3hwvpk00hqj5wpfs7v-python-matplotlib-3.1.2/lib/python3.7/site-packages/matplotlib/tests/test_widgets.py:333: AssertionError --8<---------------cut here---------------end--------------->8--- Im currently on commit 151f3d4. Regards, Diego