René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: Recent test_determinism_check flakiness","articleBody":"### Bug summary\n\nI have taken the results from https://github.com/matplotlib/matplotlib/actions/runs/16533707714/job/46764218849?pr=30334, extracted the diff, then put all the common and `-` lines in one file and the common and `+` files in another, and wrote them to separate files.\n\nThis produces a much simpler diff with just the lines that changed instead of a whole byte string diff:\n```\n--- a.eps\t2025-07-25 20:29:08.047303419 -0400\n+++ b.eps\t2025-07-25 20:30:15.458646631 -0400\n@@ -10771,27 +10771,7 @@\n 0 setlinecap\n 0 0 1 setrgbcolor\n gsave\n-/c6 {\n-279.447273 58.176 m\n-387.665455 58.176 l\n-387.665455 138.816 l\n-279.447273 138.816 l\n-cl\n-333.556364 78.336 m\n-333.556364 78.336 326.381414 78.336 319.499366 80.460185 c\n-314.425911 84.240727 309.352456 88.02127 306.501818 93.149506 c\n-306.501818 98.496 306.501818 103.842494 309.352456 108.97073 c\n-314.425911 112.751273 319.499366 116.531815 326.381414 118.656 c\n-333.556364 118.656 340.731313 118.656 347.613361 116.531815 c\n-352.686816 112.751273 357.760272 108.97073 360.610909 103.842494 c\n-360.610909 98.496 360.610909 93.149506 357.760272 88.02127 c\n-352.686816 84.240727 347.613361 80.460185 340.731313 78.336 c\n-cl\n-\n-clip\n-newpath\n-} bind def\n-c6\n+c5\n 333.556364 150.912 m\n 315.970909 121.192794 l\n 272.638562 124.704 l\n```\n\n### Code for reproduction\n\n```Python\npytest\n```\n\n### Actual outcome\n\n\u003cimg width=\"1155\" height=\"902\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/0c8e0094-de2f-4a5e-bafe-1a2ad3151508\" /\u003e\n\n### Expected outcome\n\n\u003cimg width=\"1155\" height=\"902\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/e43c2ed7-5d64-457b-ac9e-2c7f8e4ad127\" /\u003e\n\n### Additional information\n\n_No response_\n\n### Operating system\n\n_No response_\n\n### Matplotlib Version\n\ntip of #30334\n\n### Matplotlib Backend\n\n_No response_\n\n### Python version\n\n_No response_\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\nNone","author":{"url":"https://github.com/QuLogic","@type":"Person","name":"QuLogic"},"datePublished":"2025-07-26T00:40:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/30360/matplotlib/issues/30360"}