René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`test_ssl` failures in free threading Windows optimized builds","articleBody":"I'm seeing failures like:\n\n```\ntest_load_dh_params (test.test_ssl.ContextTests.test_load_dh_params) ... OPENSSL_Uplink(00007FFCDC60CB00,08): no OPENSSL_Applink\n```\n\nThe test then immediately exits.\n\nI've seen this in the buildbots and when building locally on Windows:\n\nhttps://buildbot.python.org/#/builders/1622/builds/1125\n\nWe don't see this in the GitHub actions CI because the relevant tests are skipped in debug builds:\n\nhttps://github.com/python/cpython/blob/8a00c9a4d2ce9d373b13f8f0a2265a65f4523293/Lib/test/test_ssl.py#L1324-L1325\n\nI don't think the relevant tests use threads at all -- it seems more likely to be a build issue than a multithreading issue.\n\ncc @itamaro @zooba ","author":{"url":"https://github.com/colesbury","@type":"Person","name":"colesbury"},"datePublished":"2025-03-27T20:57:42.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/131804/cpython/issues/131804"}