René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"test_bdalg_functions (control.tests.iosys_test.TestIOSys) fails","articleBody":"This is with:\r\n\r\n - python 3.7\r\n - python-control 0.8.3\r\n - matplotlib 3.1.3\r\n - numpy 1.18.1\r\n - scipy 1.4.1\r\n\r\n```\r\n\r\n======================================================================\r\nFAIL: test_bdalg_functions (control.tests.iosys_test.TestIOSys)\r\nTest block diagram functions algebra on I/O systems\r\n----------------------------------------------------------------------\r\nTraceback (most recent call last):\r\n  File \"/build/control-0.8.3/control/tests/iosys_test.py\", line 457, in test_bdalg_functions\r\n    np.testing.assert_array_almost_equal(ios_y, lin_y, decimal=3)\r\n  File \"/nix/store/dh3b3w7lkcy6p56x0fbv17k0k5winx0y-python3.7-numpy-1.18.1/lib/python3.7/site-packages/numpy/testing/_private/utils.py\", line 1047, in assert_array_almost_equal\r\n    precision=decimal)\r\n  File \"/nix/store/dh3b3w7lkcy6p56x0fbv17k0k5winx0y-python3.7-numpy-1.18.1/lib/python3.7/site-packages/numpy/testing/_private/utils.py\", line 846, in assert_array_compare\r\n    raise AssertionError(msg)\r\nAssertionError:\r\nArrays are not almost equal to 3 decimals\r\n\r\nMismatched elements: 5 / 200 (2.5%)\r\nMax absolute difference: 0.00176677\r\nMax relative difference: 0.33094816\r\n x: array([[ 0.000e+00,  1.055e-01,  2.183e-01,  3.356e-01,  4.551e-01,\r\n         5.746e-01,  6.921e-01,  8.055e-01,  9.131e-01,  1.013e+00,\r\n         1.105e+00,  1.187e+00,  1.257e+00,  1.316e+00,  1.362e+00,...\r\n y: array([[ 0.000e+00,  1.055e-01,  2.183e-01,  3.357e-01,  4.553e-01,\r\n         5.747e-01,  6.920e-01,  8.053e-01,  9.129e-01,  1.013e+00,\r\n         1.105e+00,  1.187e+00,  1.257e+00,  1.316e+00,  1.362e+00,...\r\n\r\n----------------------------------------------------------------------\r\nRan 463 tests in 19.914s\r\n\r\nFAILED (failures=1, errors=2, skipped=118)\r\n```","author":{"url":"https://github.com/flokli","@type":"Person","name":"flokli"},"datePublished":"2020-04-07T14:54:00.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/389/python-control/issues/389"}