René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"stdio_client context manager hangs","articleBody":"**Describe the bug**\nWhen using the stdio_client context manager, the process is never cleaned up.\n\n**To Reproduce**\nSteps to reproduce the behavior:\n\n```\nimport asyncio\n\nfrom mcp import ClientSession, StdioServerParameters\nfrom mcp.client.stdio import stdio_client\n\n\nasync def run():\n    server_params = StdioServerParameters(\n        command=\"claude\",\n        args=[\"mcp\", \"serve\"],\n    )\n    async with stdio_client(server_params) as (read, write):   \n        async with ClientSession(read, write) as _:\n            pass\n        print(\"exit ClientSession\")\n    print(\"exit stdio_client\")\n\nif __name__ == \"__main__\":\n    asyncio.run(run())\n```\n\n**Expected behavior**\nThe program would print:\n```\nexit ClientSession\nexit stdio_client\n```\n\nBut it never exits the stdio_client context.\n","author":{"url":"https://github.com/hwaxxer","@type":"Person","name":"hwaxxer"},"datePublished":"2025-03-24T14:16:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/360/python-sdk/issues/360"}