René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Fix flaky test test_response in test_streamable_http.py","articleBody":"### Initial Checks\n\n- [x] I confirm that I'm using the latest version of MCP Python SDK\n- [x] I confirm that I searched for my issue in https://github.com/modelcontextprotocol/python-sdk/issues before opening this issue\n\n### Description\n\nThe test is flaky. See: https://github.com/modelcontextprotocol/python-sdk/actions/runs/19020904095/job/54315849330?pr=1565\n\nOutput:\n\n```python\nbasic_server = None, basic_server_url = 'http://127.0.0.1:50695/'\n\n    def test_response(basic_server: None, basic_server_url: str):\n        \"\"\"Test response handling for a valid request.\"\"\"\n        mcp_url = f\"{basic_server_url}/mcp\"\n        response = requests.post(\n            mcp_url,\n            headers={\n                \"Accept\": \"application/json, text/event-stream\",\n                \"Content-Type\": \"application/json\",\n            },\n            json=INIT_REQUEST,\n        )\n\u003e       assert response.status_code == 200\nE       assert 404 == 200\nE        +  where 404 = \u003cResponse [404]\u003e.status_code\n\ntests/shared/test_streamable_http.py:624: AssertionError\n```\n\n### Example Code\n\n```Python\n\n```\n\n### Python \u0026 MCP Python SDK\n\n```Text\n1.19.0\n```","author":{"url":"https://github.com/maxisbey","@type":"Person","name":"maxisbey"},"datePublished":"2025-11-04T14:02:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/1573/python-sdk/issues/1573"}