{"id":108511,"date":"2026-09-22T00:32:36","date_gmt":"2026-09-21T16:32:36","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/108511.html"},"modified":"2026-09-22T00:32:36","modified_gmt":"2026-09-21T16:32:36","slug":"python-agent-%e8%b8%a9%e5%9d%91%e5%ae%9e%e5%bd%95%ef%bc%9aasyncio-wait_for-%e8%b6%85%e6%97%b6%e5%90%8e%ef%bc%8c%e4%bb%bb%e5%8a%a1%e7%9c%9f%e7%9a%84%e5%81%9c%e4%ba%86%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/108511.html","title":{"rendered":"Python Agent \u8e29\u5751\u5b9e\u5f55\uff1aasyncio.wait_for \u8d85\u65f6\u540e\uff0c\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417\uff1f"},"content":{"rendered":"<p>Python Agent \u8e29\u5751\u5b9e\u5f55&#xff1a;asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417&#xff1f;<\/p>\n<p>\u6458\u8981&#xff1a;\u672c\u6587\u4ece\u4e00\u6b21&#034;\u8d85\u65f6\u4e86\u4f46 CPU \u8fd8\u5728\u98d9&#034;\u7684\u4e8b\u6545\u51fa\u53d1&#xff0c;\u5206\u6790 Agent \u5f00\u53d1\u4e2d asyncio.wait_for \u8d85\u65f6\u540e\u4efb\u52a1\u6ca1\u6709\u771f\u6b63\u505c\u6b62\u7684\u56db\u4e2a\u9690\u853d\u539f\u56e0&#xff1a;\u540c\u6b65\u963b\u585e\u4ee3\u7801\u65e0\u6cd5\u88ab\u53d6\u6d88\u3001CancelledError \u88ab except Exception \u541e\u6389\u3001finally \u91cc\u7684 await \u88ab\u53d6\u6d88\u3001\u5b50\u4efb\u52a1\u672a\u88ab\u7ea7\u8054\u53d6\u6d88\u3002\u6587\u7ae0\u7ed9\u51fa\u8d85\u65f6\u540e\u7684\u6b63\u786e\u6e05\u7406\u59ff\u52bf&#xff0c;\u4ee5\u53ca Agent \u5de5\u5177\u8c03\u7528\u7684\u8d85\u65f6\u9632\u62a4\u65b9\u6848\u3002\u9644\u5b8c\u6574\u53ef\u590d\u7528\u4ee3\u7801\u548c\u6392\u67e5\u6e05\u5355&#xff0c;\u9002\u5408\u6b63\u5728\u5b66 Python &#043; Agent \u7684\u5f00\u53d1\u8005\u907f\u5751\u3002<\/p>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u4e00\u3001\u95ee\u9898\u80cc\u666f&#xff1a;\u8d85\u65f6\u4e86&#xff0c;\u4f46\u4efb\u52a1\u8fd8\u5728\u8dd1<\/li>\n<li>\u4e8c\u3001\u6700\u5c0f\u590d\u73b0\u4ee3\u7801&#xff1a;\u8d85\u65f6\u4e86\u4f46\u4efb\u52a1\u8fd8\u5728\u6253\u5370<\/li>\n<li>\u4e09\u3001\u56db\u4e2a\u9690\u853d\u7684&#034;\u53d6\u6d88\u5931\u8d25&#034;\u573a\u666f<\/li>\n<li>\n<ul>\n<li>\u573a\u666f\u4e00&#xff1a;\u540c\u6b65\u963b\u585e\u4ee3\u7801\u65e0\u6cd5\u88ab\u53d6\u6d88<\/li>\n<li>\u573a\u666f\u4e8c&#xff1a;CancelledError \u88ab except Exception \u541e\u6389<\/li>\n<li>\u573a\u666f\u4e09&#xff1a;finally \u91cc\u7684 await \u88ab\u53d6\u6d88<\/li>\n<li>\u573a\u666f\u56db&#xff1a;\u5b50\u4efb\u52a1\u672a\u88ab\u7ea7\u8054\u53d6\u6d88<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u4fee\u590d\u65b9\u6848&#xff1a;\u6b63\u786e\u7684\u8d85\u65f6\u4e0e\u53d6\u6d88<\/li>\n<li>\n<ul>\n<li>\u65b9\u6848\u4e00&#xff1a;\u7528 asyncio.timeout \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668&#xff08;Python 3.11&#043;&#xff09;<\/li>\n<li>\u65b9\u6848\u4e8c&#xff1a;\u786e\u4fdd\u4efb\u52a1\u53ef\u53d6\u6d88<\/li>\n<li>\u65b9\u6848\u4e09&#xff1a;\u8d85\u65f6\u540e\u663e\u5f0f\u6e05\u7406<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001Agent \u5de5\u5177\u8c03\u7528\u7684\u5b8c\u6574\u8d85\u65f6\u9632\u62a4<\/li>\n<li>\u516d\u3001Agent \u5f00\u53d1\u4e2d\u7684\u7279\u6b8a\u573a\u666f<\/li>\n<li>\n<ul>\n<li>\u573a\u666f\u4e00&#xff1a;LLM API \u8c03\u7528\u8d85\u65f6<\/li>\n<li>\u573a\u666f\u4e8c&#xff1a;\u6d41\u5f0f\u8f93\u51fa\u7684\u8d85\u65f6<\/li>\n<\/ul>\n<\/li>\n<li>\u4e03\u3001\u603b\u7ed3\u4e0e\u6392\u67e5\u6e05\u5355<\/li>\n<li>\n<ul>\n<li>\u6838\u5fc3\u7ed3\u8bba<\/li>\n<li>\u6392\u67e5\u6e05\u5355<\/li>\n<li>\u63a8\u8350\u5b9e\u8df5<\/li>\n<\/ul>\n<\/li>\n<li>\u516b\u3001\u5199\u5728\u6700\u540e<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u95ee\u9898\u80cc\u666f&#xff1a;\u8d85\u65f6\u4e86&#xff0c;\u4f46\u4efb\u52a1\u8fd8\u5728\u8dd1<\/h3>\n<p>\u6700\u8fd1\u5728\u5199\u4e00\u4e2a Agent \u9879\u76ee&#xff0c;\u5de5\u5177\u8c03\u7528\u9700\u8981\u8bbe\u7f6e\u8d85\u65f6&#xff0c;\u907f\u514d\u67d0\u4e2a\u5de5\u5177\u5361\u6b7b\u62d6\u57ae\u6574\u4e2a Agent\u3002<\/p>\n<p>\u6211\u5199\u4e86\u8fd9\u6837\u7684\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_tool<\/span><span class=\"token punctuation\">(<\/span>tool_name<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span><br \/>\n            _execute_tool<span class=\"token punctuation\">(<\/span>tool_name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            timeout<span class=\"token operator\">&#061;<\/span>timeout<span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5de5\u5177 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>tool_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u8d85\u65f6&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6d4b\u8bd5\u7684\u65f6\u5019\u53d1\u73b0\u4e00\u4e2a\u8be1\u5f02\u73b0\u8c61&#xff1a;<\/p>\n<ul>\n<li>5 \u79d2\u540e\u786e\u5b9e\u8fd4\u56de\u4e86\u8d85\u65f6\u9519\u8bef&#xff1b;<\/li>\n<li>\u4f46\u540e\u53f0\u7684 _execute_tool \u8fd8\u5728\u8dd1&#xff1b;<\/li>\n<li>\u65e5\u5fd7\u91cc\u80fd\u770b\u5230\u5de5\u5177\u5728\u8d85\u65f6\u540e\u4ecd\u7136\u6253\u5370\u8f93\u51fa&#xff1b;<\/li>\n<li>CPU \u5360\u7528\u6ca1\u6709\u4e0b\u964d&#xff1b;<\/li>\n<li>\u5982\u679c\u8fde\u7eed\u89e6\u53d1 10 \u6b21\u8d85\u65f6&#xff0c;\u540e\u53f0\u5c31\u7d2f\u79ef\u4e86 10 \u4e2a&#034;\u50f5\u5c38\u4efb\u52a1&#034;\u3002<\/li>\n<\/ul>\n<p>\u66f4\u7cdf\u7684\u662f&#xff0c;\u67d0\u4e9b\u5de5\u5177\u8c03\u7528\u4e86\u5916\u90e8 API&#xff0c;\u8d85\u65f6\u540e\u8bf7\u6c42\u5e76\u6ca1\u6709\u771f\u6b63\u53d6\u6d88&#xff0c;\u5916\u90e8 API \u4fa7\u8fd8\u5728\u8ba1\u8d39\u3002<\/p>\n<p>\u6392\u67e5\u540e\u53d1\u73b0&#xff1a;asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u53ea\u662f\u4ece\u7b49\u5f85\u8005\u7684\u89c6\u89d2\u7ed3\u675f\u4e86&#xff0c;\u4efb\u52a1\u672c\u8eab\u4e0d\u4e00\u5b9a\u771f\u7684\u505c\u4e86\u3002<\/p>\n<h3>\u4e8c\u3001\u6700\u5c0f\u590d\u73b0\u4ee3\u7801&#xff1a;\u8d85\u65f6\u4e86\u4f46\u4efb\u52a1\u8fd8\u5728\u6253\u5370<\/h3>\n<p>\u5148\u770b\u9519\u8bef\u7248\u672c&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">long_running_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u5f00\u59cb&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u4efb\u52a1\u8fd0\u884c\u4e2d&#8230; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>i<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u5b8c\u6210&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>CancelledError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u88ab\u53d6\u6d88&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">raise<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        result <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>long_running_task<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u7ed3\u679c: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>result<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8d85\u65f6\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u7b49\u5f85 5 \u79d2&#xff0c;\u89c2\u5bdf\u540e\u53f0\u662f\u5426\u8fd8\u6709\u8f93\u51fa<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e3b\u534f\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8f93\u51fa&#xff1a;<\/p>\n<p>\u4efb\u52a1\u5f00\u59cb<br \/>\n\u4efb\u52a1\u8fd0\u884c\u4e2d&#8230; 0<br \/>\n\u4efb\u52a1\u8fd0\u884c\u4e2d&#8230; 1<br \/>\n\u4efb\u52a1\u8fd0\u884c\u4e2d&#8230; 2<br \/>\n\u8d85\u65f6\u4e86&#xff01;<br \/>\n\u4efb\u52a1\u88ab\u53d6\u6d88<br \/>\n\u4e3b\u534f\u7a0b\u7ed3\u675f<\/p>\n<p>\u770b\u8d77\u6765\u6b63\u5e38&#xff1f;\u4efb\u52a1\u88ab\u53d6\u6d88\u4e86\u3002\u4f46\u662f&#xff0c;\u5982\u679c\u4efb\u52a1\u91cc\u6709\u540c\u6b65\u963b\u585e\u4ee3\u7801&#xff0c;\u6216\u8005\u541e\u6389\u4e86 CancelledError&#xff0c;\u7ed3\u679c\u5c31\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n<h3>\u4e09\u3001\u56db\u4e2a\u9690\u853d\u7684&#034;\u53d6\u6d88\u5931\u8d25&#034;\u573a\u666f<\/h3>\n<h4>\u573a\u666f\u4e00&#xff1a;\u540c\u6b65\u963b\u585e\u4ee3\u7801\u65e0\u6cd5\u88ab\u53d6\u6d88<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<br \/>\n<span class=\"token keyword\">import<\/span> time<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">blocking_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u5f00\u59cb&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u540c\u6b65\u963b\u585e&#xff0c;\u65e0\u6cd5\u88ab\u53d6\u6d88<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4efb\u52a1\u5b8c\u6210&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>blocking_task<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8d85\u65f6\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e3b\u534f\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8f93\u51fa&#xff1a;<\/p>\n<p>\u4efb\u52a1\u5f00\u59cb<br \/>\n\u8d85\u65f6\u4e86&#xff01;<br \/>\n\u4e3b\u534f\u7a0b\u7ed3\u675f<br \/>\n\u4efb\u52a1\u5b8c\u6210   # \u8d85\u65f6\u540e\u4ecd\u7136\u6253\u5370\u4e86&#xff01;<\/p>\n<p>\u539f\u56e0&#xff1a;time.sleep(10) \u662f\u540c\u6b65\u963b\u585e\u8c03\u7528&#xff0c;asyncio \u7684\u53d6\u6d88\u673a\u5236\u53ea\u80fd\u5728 await \u70b9\u751f\u6548\u3002\u5f53\u534f\u7a0b\u5361\u5728\u540c\u6b65\u4ee3\u7801\u91cc\u65f6&#xff0c;\u53d6\u6d88\u4fe1\u53f7\u65e0\u6cd5\u4f20\u9012&#xff0c;\u4efb\u52a1\u4f1a\u4e00\u76f4\u8dd1\u5230\u540c\u6b65\u4ee3\u7801\u7ed3\u675f\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u7b2c\u4e00\u7bc7\u8bb2 time.sleep \u4f1a\u963b\u585e\u4e8b\u4ef6\u5faa\u73af\u2014\u2014\u5b83\u4e0d\u4ec5\u963b\u585e\u5e76\u53d1&#xff0c;\u8fd8\u8ba9\u8d85\u65f6\u673a\u5236\u5931\u6548\u3002<\/p>\n<h4>\u573a\u666f\u4e8c&#xff1a;CancelledError \u88ab except Exception \u541e\u6389<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">swallow_cancel_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u8fd0\u884c\u4e2d&#8230; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>i<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># CancelledError \u5728 Python 3.8&#043; \u662f BaseException&#xff0c;\u4f46&#8230;<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6355\u83b7\u5230\u5f02\u5e38: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>e<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;error&#034;<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>swallow_cancel_task<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8d85\u65f6\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e3b\u534f\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u5173\u952e\u77e5\u8bc6\u70b9&#xff1a;<\/p>\n<ul>\n<li>Python 3.8 \u4e4b\u524d&#xff0c;CancelledError \u7ee7\u627f\u81ea Exception&#xff0c;except Exception \u4f1a\u541e\u6389\u5b83&#xff1b;<\/li>\n<li>Python 3.8&#043;&#xff0c;CancelledError \u7ee7\u627f\u81ea BaseException&#xff0c;except Exception \u4e0d\u4f1a\u6355\u83b7\u5b83&#xff1b;<\/li>\n<li>\u4f46\u5982\u679c\u4ee3\u7801\u91cc\u7528\u4e86 except BaseException \u6216\u88f8 except:&#xff0c;\u4ecd\u7136\u4f1a\u541e\u6389\u3002<\/li>\n<\/ul>\n<p>\u5371\u9669\u7684\u5199\u6cd5&#xff1a;<\/p>\n<p><span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> something<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">except<\/span> BaseException<span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u5371\u9669&#xff01;\u4f1a\u541e\u6389 CancelledError<\/span><br \/>\n    <span class=\"token keyword\">pass<\/span><\/p>\n<p><span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> something<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">except<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u66f4\u5371\u9669&#xff01;\u88f8 except \u4f1a\u541e\u6389\u4e00\u5207<\/span><br \/>\n    <span class=\"token keyword\">pass<\/span><\/p>\n<p>\u6b63\u786e\u505a\u6cd5&#xff1a;\u6355\u83b7 CancelledError \u540e\u5fc5\u987b raise \u91cd\u65b0\u629b\u51fa&#xff1a;<\/p>\n<p><span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> something<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>CancelledError<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u505a\u4e00\u4e9b\u6e05\u7406<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6e05\u7406\u8d44\u6e90&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">raise<\/span>  <span class=\"token comment\"># \u5fc5\u987b\u91cd\u65b0\u629b\u51fa<\/span><br \/>\n<span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5904\u7406\u4e1a\u52a1\u5f02\u5e38<\/span><br \/>\n    handle_error<span class=\"token punctuation\">(<\/span>e<span class=\"token punctuation\">)<\/span><\/p>\n<h4>\u573a\u666f\u4e09&#xff1a;finally \u91cc\u7684 await \u88ab\u53d6\u6d88<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">task_with_cleanup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb\u6e05\u7406&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8fd9\u4e2a await \u4f1a\u88ab\u53d6\u6d88<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6e05\u7406\u5b8c\u6210&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u4e0d\u4f1a\u6267\u884c<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>task_with_cleanup<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">2.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8d85\u65f6\u4e86&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8f93\u51fa&#xff1a;<\/p>\n<p>\u5f00\u59cb\u6e05\u7406<br \/>\n\u8d85\u65f6\u4e86&#xff01;<\/p>\n<p>\u6e05\u7406\u5b8c\u6210 \u6c38\u8fdc\u4e0d\u4f1a\u6253\u5370\u3002\u539f\u56e0&#xff1a;\u4efb\u52a1\u88ab\u53d6\u6d88\u540e&#xff0c;finally \u91cc\u5982\u679c\u8fd8\u6709 await&#xff0c;\u4f1a\u7acb\u523b\u518d\u6b21\u89e6\u53d1 CancelledError&#xff0c;\u5bfc\u81f4\u6e05\u7406\u903b\u8f91\u4e2d\u65ad\u3002<\/p>\n<p>\u4fee\u590d\u65b9\u6848&#xff1a;\u7528 asyncio.shield() \u4fdd\u62a4\u6e05\u7406\u903b\u8f91&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">task_with_cleanup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># shield \u4fdd\u62a4\u6e05\u7406\u4efb\u52a1\u4e0d\u88ab\u53d6\u6d88<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>shield<span class=\"token punctuation\">(<\/span>_cleanup<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">_cleanup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5f00\u59cb\u6e05\u7406&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6e05\u7406\u5b8c\u6210&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;shield \u53ea\u662f\u4fdd\u62a4\u5185\u90e8\u4efb\u52a1\u4e0d\u88ab\u5916\u90e8\u53d6\u6d88&#xff0c;\u4f46\u5982\u679c\u5916\u5c42\u534f\u7a0b\u88ab\u5f3a\u5236\u7ed3\u675f&#xff0c;\u5185\u90e8\u4efb\u52a1\u4ecd\u7136\u53ef\u80fd\u88ab\u4e22\u5f03\u3002\u751f\u4ea7\u73af\u5883\u5efa\u8bae\u7528 asyncio.create_task \u628a\u6e05\u7406\u4efb\u52a1\u72ec\u7acb\u51fa\u53bb&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">task_with_cleanup<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u6e05\u7406\u4efb\u52a1\u72ec\u7acb\u8fd0\u884c&#xff0c;\u4e0d\u4f9d\u8d56\u5f53\u524d\u534f\u7a0b\u7684\u751f\u547d\u5468\u671f<\/span><br \/>\n        asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>_cleanup<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>\u573a\u666f\u56db&#xff1a;\u5b50\u4efb\u52a1\u672a\u88ab\u7ea7\u8054\u53d6\u6d88<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">child_task<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">while<\/span> <span class=\"token boolean\">True<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5b50\u4efb\u52a1 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u8fd0\u884c\u4e2d&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>CancelledError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5b50\u4efb\u52a1 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u88ab\u53d6\u6d88&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">raise<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">parent_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u542f\u52a8\u5b50\u4efb\u52a1&#xff0c;\u4f46\u4e0d\u4fdd\u5b58\u5f15\u7528<\/span><br \/>\n    asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;B&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>parent_task<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7236\u4efb\u52a1\u8d85\u65f6&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e3b\u534f\u7a0b\u7ed3\u675f&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8f93\u51fa&#xff1a;<\/p>\n<p>\u5b50\u4efb\u52a1 A \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 B \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 A \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 B \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 A \u8fd0\u884c\u4e2d<br \/>\n\u7236\u4efb\u52a1\u8d85\u65f6&#xff01;<br \/>\n\u5b50\u4efb\u52a1 A \u8fd0\u884c\u4e2d       # \u7236\u4efb\u52a1\u8d85\u65f6\u540e&#xff0c;\u5b50\u4efb\u52a1\u8fd8\u5728\u8dd1&#xff01;<br \/>\n\u5b50\u4efb\u52a1 B \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 A \u8fd0\u884c\u4e2d<br \/>\n\u5b50\u4efb\u52a1 B \u8fd0\u884c\u4e2d<br \/>\n\u4e3b\u534f\u7a0b\u7ed3\u675f<\/p>\n<p>\u539f\u56e0&#xff1a;asyncio.wait_for \u53ea\u53d6\u6d88 parent_task \u672c\u8eab&#xff0c;\u4e0d\u4f1a\u81ea\u52a8\u53d6\u6d88 parent_task \u91cc\u521b\u5efa\u7684\u5b50\u4efb\u52a1\u3002\u5b50\u4efb\u52a1\u53d8\u6210&#034;\u5b64\u513f&#034;&#xff0c;\u7ee7\u7eed\u8fd0\u884c\u76f4\u5230\u81ea\u5df1\u7ed3\u675f\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u7b2c\u4e09\u7bc7\u8bb2\u7684&#034;\u4efb\u52a1\u88ab GC \u9759\u9ed8\u53d6\u6d88&#034;\u7684\u53cd\u9762\u2014\u2014\u8fd9\u91cc\u4efb\u52a1\u6ca1\u88ab GC&#xff0c;\u4f46\u4e5f\u6ca1\u88ab\u6b63\u786e\u53d6\u6d88&#xff0c;\u53d8\u6210\u4e86\u6cc4\u6f0f\u3002<\/p>\n<p>\u4fee\u590d\u65b9\u6848&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">parent_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    child_a <span class=\"token operator\">&#061;<\/span> asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    child_b <span class=\"token operator\">&#061;<\/span> asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;B&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u7236\u4efb\u52a1\u88ab\u53d6\u6d88\u65f6&#xff0c;\u7ea7\u8054\u53d6\u6d88\u5b50\u4efb\u52a1<\/span><br \/>\n        <span class=\"token keyword\">for<\/span> child <span class=\"token keyword\">in<\/span> <span class=\"token punctuation\">(<\/span>child_a<span class=\"token punctuation\">,<\/span> child_b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> child<span class=\"token punctuation\">.<\/span>done<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                child<span class=\"token punctuation\">.<\/span>cancel<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token comment\"># \u7b49\u5f85\u5b50\u4efb\u52a1\u771f\u6b63\u7ed3\u675f<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>gather<span class=\"token punctuation\">(<\/span>child_a<span class=\"token punctuation\">,<\/span> child_b<span class=\"token punctuation\">,<\/span> return_exceptions<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>Python 3.11&#043; \u63a8\u8350\u7528 TaskGroup&#xff0c;\u5b83\u4f1a\u81ea\u52a8\u5904\u7406\u7ea7\u8054\u53d6\u6d88&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">parent_task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>TaskGroup<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> tg<span class=\"token punctuation\">:<\/span><br \/>\n        tg<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;A&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        tg<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>child_task<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;B&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><\/p>\n<h3>\u56db\u3001\u4fee\u590d\u65b9\u6848&#xff1a;\u6b63\u786e\u7684\u8d85\u65f6\u4e0e\u53d6\u6d88<\/h3>\n<h4>\u65b9\u6848\u4e00&#xff1a;\u7528 asyncio.timeout \u4e0a\u4e0b\u6587\u7ba1\u7406\u5668&#xff08;Python 3.11&#043;&#xff09;<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_tool<\/span><span class=\"token punctuation\">(<\/span>tool_name<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            result <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> _execute_tool<span class=\"token punctuation\">(<\/span>tool_name<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> result<br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5de5\u5177 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>tool_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u8d85\u65f6&#034;<\/span><\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">_execute_tool<\/span><span class=\"token punctuation\">(<\/span>tool_name<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5185\u90e8\u5fc5\u987b\u662f\u53ef\u53d6\u6d88\u7684\u5f02\u6b65\u4ee3\u7801<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>tool_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u7684\u7ed3\u679c&#034;<\/span><\/span><\/p>\n<p>asyncio.timeout \u662f Python 3.11 \u5f15\u5165\u7684&#xff0c;\u6bd4 wait_for \u66f4\u63a8\u8350&#xff0c;\u56e0\u4e3a\u5b83&#xff1a;<\/p>\n<ul>\n<li>\u8bed\u4e49\u66f4\u6e05\u6670&#xff0c;async with \u5305\u88f9\u7684\u4ee3\u7801\u5757\u8d85\u65f6\u540e\u4f1a\u88ab\u53d6\u6d88&#xff1b;<\/li>\n<li>\u652f\u6301\u5d4c\u5957\u8d85\u65f6&#xff0c;\u5185\u5c42\u8d85\u65f6\u4e0d\u4f1a\u5f71\u54cd\u5916\u5c42&#xff1b;<\/li>\n<li>\u4e0e TaskGroup \u914d\u5408\u66f4\u597d\u3002<\/li>\n<\/ul>\n<h4>\u65b9\u6848\u4e8c&#xff1a;\u786e\u4fdd\u4efb\u52a1\u53ef\u53d6\u6d88<\/h4>\n<p>\u6838\u5fc3\u539f\u5219&#xff1a;\u6240\u6709\u8017\u65f6\u7684\u64cd\u4f5c\u90fd\u5fc5\u987b\u662f\u53ef\u53d6\u6d88\u7684\u5f02\u6b65\u64cd\u4f5c\u3002<\/p>\n<table>\n<tr>\u4e0d\u53ef\u53d6\u6d88&#xff08;\u5371\u9669&#xff09;\u53ef\u53d6\u6d88&#xff08;\u6b63\u786e&#xff09;<\/tr>\n<tbody>\n<tr>\n<td>time.sleep()<\/td>\n<td>await asyncio.sleep()<\/td>\n<\/tr>\n<tr>\n<td>requests.get()<\/td>\n<td>await httpx.AsyncClient().get()<\/td>\n<\/tr>\n<tr>\n<td>\u540c\u6b65\u6570\u636e\u5e93\u9a71\u52a8<\/td>\n<td>\u5f02\u6b65\u9a71\u52a8 \/ asyncio.to_thread<\/td>\n<\/tr>\n<tr>\n<td>\u5927\u6587\u4ef6\u540c\u6b65\u8bfb\u5199<\/td>\n<td>aiofiles \/ asyncio.to_thread<\/td>\n<\/tr>\n<tr>\n<td>CPU \u5bc6\u96c6\u8ba1\u7b97<\/td>\n<td>ProcessPoolExecutor &#043; \u5b9a\u671f\u68c0\u67e5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u6ce8\u610f asyncio.to_thread&#xff1a;\u5b83\u867d\u7136\u80fd\u8ba9\u540c\u6b65\u4ee3\u7801\u4e0d\u963b\u585e\u4e8b\u4ef6\u5faa\u73af&#xff0c;\u4f46\u7ebf\u7a0b\u4e00\u65e6\u542f\u52a8\u5c31\u65e0\u6cd5\u88ab\u53d6\u6d88\u3002asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u7ebf\u7a0b\u4f1a\u7ee7\u7eed\u8dd1\u5230\u7ed3\u675f&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> asyncio<br \/>\n<span class=\"token keyword\">import<\/span> time<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">_sync_blocking<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7ebf\u7a0b\u4f1a\u8dd1\u5b8c<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;done&#034;<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">task<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>to_thread<span class=\"token punctuation\">(<\/span>_sync_blocking<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>wait_for<span class=\"token punctuation\">(<\/span>task<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> asyncio<span class=\"token punctuation\">.<\/span>TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8d85\u65f6\u4e86&#xff0c;\u4f46\u7ebf\u7a0b\u8fd8\u5728\u8dd1&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ebf\u7a0b\u7ed3\u675f\u4e86&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>asyncio<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>main<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u7ed3\u8bba&#xff1a;to_thread \u9002\u5408&#034;\u4e0d\u53ef\u53d6\u6d88\u4f46\u4e0d\u5173\u952e&#034;\u7684\u573a\u666f&#xff0c;\u4e0d\u9002\u5408&#034;\u5fc5\u987b\u80fd\u53d6\u6d88&#034;\u7684\u573a\u666f\u3002<\/p>\n<h4>\u65b9\u6848\u4e09&#xff1a;\u8d85\u65f6\u540e\u663e\u5f0f\u6e05\u7406<\/h4>\n<p><span class=\"token keyword\">import<\/span> asyncio<br \/>\n<span class=\"token keyword\">import<\/span> httpx<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_with_timeout<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    client <span class=\"token operator\">&#061;<\/span> httpx<span class=\"token punctuation\">.<\/span>AsyncClient<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">.<\/span>json<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\u8bf7\u6c42\u8d85\u65f6&#034;<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u65e0\u8bba\u6210\u529f\u5931\u8d25&#xff0c;\u90fd\u5173\u95ed client<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>aclose<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u5173\u952e\u70b9&#xff1a;\u8d85\u65f6\u540e\u7684\u6e05\u7406\u903b\u8f91\u8981\u653e\u5728 finally \u91cc&#xff0c;\u5e76\u4e14\u7528 asyncio.shield \u4fdd\u62a4&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_with_timeout<\/span><span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">5.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    client <span class=\"token operator\">&#061;<\/span> httpx<span class=\"token punctuation\">.<\/span>AsyncClient<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span>url<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;error&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;\u8bf7\u6c42\u8d85\u65f6&#034;<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">finally<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u4fdd\u62a4\u6e05\u7406\u903b\u8f91<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>shield<span class=\"token punctuation\">(<\/span>client<span class=\"token punctuation\">.<\/span>aclose<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u4e94\u3001Agent \u5de5\u5177\u8c03\u7528\u7684\u5b8c\u6574\u8d85\u65f6\u9632\u62a4<\/h3>\n<p>\u628a\u4e0a\u9762\u7684\u6240\u6709\u80fd\u529b\u6574\u5408\u5230\u4e00\u4e2a\u5de5\u5177\u8c03\u7528\u5c01\u88c5\u91cc&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> asyncio<br \/>\n<span class=\"token keyword\">from<\/span> typing <span class=\"token keyword\">import<\/span> Callable<span class=\"token punctuation\">,<\/span> Awaitable<span class=\"token punctuation\">,<\/span> TypeVar<span class=\"token punctuation\">,<\/span> Any<\/p>\n<p>T <span class=\"token operator\">&#061;<\/span> TypeVar<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;T&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">ToolTimeoutError<\/span><span class=\"token punctuation\">(<\/span>Exception<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;\u5de5\u5177\u8d85\u65f6\u5f02\u5e38&#034;&#034;&#034;<\/span><br \/>\n    <span class=\"token keyword\">pass<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_tool_with_timeout<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    tool_name<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    tool_func<span class=\"token punctuation\">:<\/span> Callable<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">,<\/span> Awaitable<span class=\"token punctuation\">[<\/span>T<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span><br \/>\n    timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10.0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    cleanup<span class=\"token punctuation\">:<\/span> Callable<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> Awaitable<span class=\"token punctuation\">[<\/span><span class=\"token boolean\">None<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token operator\">|<\/span> <span class=\"token boolean\">None<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&gt;<\/span> T<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;<br \/>\n    \u8c03\u7528\u5de5\u5177&#xff0c;\u5e26\u8d85\u65f6\u548c\u6e05\u7406<\/p>\n<p>    :param tool_name: \u5de5\u5177\u540d&#xff08;\u7528\u4e8e\u65e5\u5fd7&#xff09;<br \/>\n    :param tool_func: \u5de5\u5177\u51fd\u6570&#xff08;\u5fc5\u987b\u662f\u53ef\u53d6\u6d88\u7684\u5f02\u6b65\u51fd\u6570&#xff09;<br \/>\n    :param timeout: \u8d85\u65f6\u65f6\u95f4<br \/>\n    :param cleanup: \u8d85\u65f6\u540e\u7684\u6e05\u7406\u51fd\u6570<br \/>\n    &#034;&#034;&#034;<\/span><br \/>\n    task <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">None<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            task <span class=\"token operator\">&#061;<\/span> asyncio<span class=\"token punctuation\">.<\/span>create_task<span class=\"token punctuation\">(<\/span>tool_func<span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>args<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">**<\/span>kwargs<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">await<\/span> task<br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u4efb\u52a1\u53ef\u80fd\u8fd8\u5728\u8fd0\u884c&#xff0c;\u5c1d\u8bd5\u53d6\u6d88<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> task <span class=\"token keyword\">and<\/span> <span class=\"token keyword\">not<\/span> task<span class=\"token punctuation\">.<\/span>done<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            task<span class=\"token punctuation\">.<\/span>cancel<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">await<\/span> task<br \/>\n            <span class=\"token keyword\">except<\/span> <span class=\"token punctuation\">(<\/span>asyncio<span class=\"token punctuation\">.<\/span>CancelledError<span class=\"token punctuation\">,<\/span> Exception<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">pass<\/span><\/p>\n<p>        <span class=\"token comment\"># \u6267\u884c\u6e05\u7406<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> cleanup<span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">await<\/span> asyncio<span class=\"token punctuation\">.<\/span>shield<span class=\"token punctuation\">(<\/span>cleanup<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">except<\/span> Exception <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;[WARN] \u6e05\u7406\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>e<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>        <span class=\"token keyword\">raise<\/span> ToolTimeoutError<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5de5\u5177 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>tool_name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u8d85\u65f6&#xff08;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>timeout<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">s&#xff09;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u4f7f\u7528\u793a\u4f8b&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">search_web<\/span><span class=\"token punctuation\">(<\/span>query<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> client<span class=\"token punctuation\">:<\/span> httpx<span class=\"token punctuation\">.<\/span>AsyncClient<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    response <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>get<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;https:\/\/api.example.com\/search?q&#061;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>query<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> response<span class=\"token punctuation\">.<\/span>json<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">cleanup_http_client<\/span><span class=\"token punctuation\">(<\/span>client<span class=\"token punctuation\">:<\/span> httpx<span class=\"token punctuation\">.<\/span>AsyncClient<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>aclose<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    client <span class=\"token operator\">&#061;<\/span> httpx<span class=\"token punctuation\">.<\/span>AsyncClient<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        result <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> call_tool_with_timeout<span class=\"token punctuation\">(<\/span><br \/>\n            <span class=\"token string\">&#034;search_web&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            search_web<span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token string\">&#034;python agent&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            client<span class=\"token operator\">&#061;<\/span>client<span class=\"token punctuation\">,<\/span><br \/>\n            timeout<span class=\"token operator\">&#061;<\/span><span class=\"token number\">5.0<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            cleanup<span class=\"token operator\">&#061;<\/span><span class=\"token keyword\">lambda<\/span><span class=\"token punctuation\">:<\/span> cleanup_http_client<span class=\"token punctuation\">(<\/span>client<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> ToolTimeoutError <span class=\"token keyword\">as<\/span> e<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u5de5\u5177\u8c03\u7528\u5931\u8d25: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>e<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u516d\u3001Agent \u5f00\u53d1\u4e2d\u7684\u7279\u6b8a\u573a\u666f<\/h3>\n<h4>\u573a\u666f\u4e00&#xff1a;LLM API \u8c03\u7528\u8d85\u65f6<\/h4>\n<p>LLM API \u7684\u8d85\u65f6\u65f6\u95f4\u901a\u5e38\u6bd4\u8f83\u957f&#xff08;30~60 \u79d2&#xff09;&#xff0c;\u5982\u679c\u8d85\u65f6\u540e\u6ca1\u6709\u6b63\u786e\u53d6\u6d88&#xff0c;\u4f1a\u5bfc\u81f4&#xff1a;<\/p>\n<ul>\n<li>\u8bf7\u6c42\u7ee7\u7eed\u6267\u884c&#xff0c;token \u7167\u5e38\u6d88\u8017&#xff1b;<\/li>\n<li>\u8fde\u63a5\u6c60\u88ab\u5360\u6ee1&#xff0c;\u540e\u7eed\u8bf7\u6c42\u6392\u961f&#xff1b;<\/li>\n<li>\u7528\u6237\u4fa7\u770b\u5230&#034;\u5361\u4f4f&#034;&#xff0c;\u4f46\u670d\u52a1\u7aef\u8fd8\u5728\u8dd1\u3002<\/li>\n<\/ul>\n<p>\u4fee\u590d&#xff1a;<\/p>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">call_llm_with_timeout<\/span><span class=\"token punctuation\">(<\/span>prompt<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">60.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>chat<span class=\"token punctuation\">.<\/span>completions<span class=\"token punctuation\">.<\/span>create<span class=\"token punctuation\">(<\/span><br \/>\n                model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;gpt-4o-mini&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n                messages<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;role&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;user&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;content&#034;<\/span><span class=\"token punctuation\">:<\/span> prompt<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n            <span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">raise<\/span> ToolTimeoutError<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;LLM \u8c03\u7528\u8d85\u65f6&#xff08;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>timeout<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">s&#xff09;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;httpx&#xff08;OpenAI SDK \u5e95\u5c42\u7528\u7684\u5e93&#xff09;\u5728\u6536\u5230\u53d6\u6d88\u4fe1\u53f7\u65f6&#xff0c;\u4f1a\u4e3b\u52a8\u5173\u95ed\u8fde\u63a5\u5e76\u4e2d\u6b62\u8bf7\u6c42\u3002\u524d\u63d0\u662f\u8bf7\u6c42\u8fd8\u5728&#034;\u7b49\u5f85\u54cd\u5e94&#034;\u9636\u6bb5&#xff0c;\u5982\u679c\u5df2\u7ecf\u5728\u6d41\u5f0f\u8f93\u51fa\u4e2d&#xff0c;\u53d6\u6d88\u540e\u5df2\u751f\u6210\u7684\u90e8\u5206 token \u4ecd\u7136\u4f1a\u88ab\u8ba1\u8d39\u3002<\/p>\n<h4>\u573a\u666f\u4e8c&#xff1a;\u6d41\u5f0f\u8f93\u51fa\u7684\u8d85\u65f6<\/h4>\n<p>\u6d41\u5f0f\u8f93\u51fa\u6709\u4e24\u4e2a\u8d85\u65f6&#xff1a;<\/p>\n<ul>\n<li>\u9996 token \u8d85\u65f6&#xff1a;\u4ece\u53d1\u8d77\u8bf7\u6c42\u5230\u6536\u5230\u7b2c\u4e00\u4e2a token \u7684\u65f6\u95f4&#xff1b;<\/li>\n<li>token \u95f4\u9694\u8d85\u65f6&#xff1a;\u4e24\u4e2a token \u4e4b\u95f4\u7684\u6700\u5927\u95f4\u9694\u3002<\/li>\n<\/ul>\n<p><span class=\"token keyword\">async<\/span> <span class=\"token keyword\">def<\/span> <span class=\"token function\">stream_with_timeout<\/span><span class=\"token punctuation\">(<\/span>prompt<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> first_token_timeout<span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">float<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10.0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    stream <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> client<span class=\"token punctuation\">.<\/span>chat<span class=\"token punctuation\">.<\/span>completions<span class=\"token punctuation\">.<\/span>create<span class=\"token punctuation\">(<\/span><br \/>\n        model<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;gpt-4o-mini&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        messages<span class=\"token operator\">&#061;<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;role&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;user&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;content&#034;<\/span><span class=\"token punctuation\">:<\/span> prompt<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        stream<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u9996 token \u8d85\u65f6<\/span><br \/>\n    <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>first_token_timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            first_chunk <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">await<\/span> anext<span class=\"token punctuation\">(<\/span>stream<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">raise<\/span> ToolTimeoutError<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u9996 token \u8d85\u65f6&#xff08;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>first_token_timeout<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">s&#xff09;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u5904\u7406\u9996 token<\/span><br \/>\n    <span class=\"token keyword\">yield<\/span> first_chunk<\/p>\n<p>    <span class=\"token comment\"># token \u95f4\u9694\u8d85\u65f6<\/span><br \/>\n    <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">for<\/span> chunk <span class=\"token keyword\">in<\/span> stream<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">try<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">async<\/span> <span class=\"token keyword\">with<\/span> asyncio<span class=\"token punctuation\">.<\/span>timeout<span class=\"token punctuation\">(<\/span>token_interval_timeout<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n                <span class=\"token keyword\">yield<\/span> chunk<br \/>\n        <span class=\"token keyword\">except<\/span> TimeoutError<span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token keyword\">raise<\/span> ToolTimeoutError<span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;token \u95f4\u9694\u8d85\u65f6&#xff08;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>token_interval_timeout<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">s&#xff09;&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u5b9e\u73b0\u8981\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u9996 token \u8d85\u65f6\u7528 asyncio.timeout \u5305\u88f9\u7b2c\u4e00\u6b21 anext(stream)&#xff1b;<\/li>\n<li>token \u95f4\u9694\u8d85\u65f6\u7528 asyncio.timeout \u5305\u88f9\u6bcf\u6b21\u8fed\u4ee3&#xff1b;<\/li>\n<li>\u8d85\u65f6\u540e\u629b\u51fa ToolTimeoutError&#xff0c;\u7531\u4e0a\u5c42\u7edf\u4e00\u5904\u7406\u3002<\/li>\n<\/ul>\n<h3>\u4e03\u3001\u603b\u7ed3\u4e0e\u6392\u67e5\u6e05\u5355<\/h3>\n<h4>\u6838\u5fc3\u7ed3\u8bba<\/h4>\n<p>asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u53ea\u662f\u4ece\u7b49\u5f85\u8005\u7684\u89c6\u89d2\u7ed3\u675f\u4e86&#xff0c;\u4efb\u52a1\u672c\u8eab\u4e0d\u4e00\u5b9a\u771f\u7684\u505c\u4e86\u3002\u8981\u8ba9\u4efb\u52a1\u771f\u6b63\u505c\u6b62&#xff0c;\u5fc5\u987b\u6ee1\u8db3\u4e09\u4e2a\u6761\u4ef6&#xff1a;<\/p>\n<li>\u4efb\u52a1\u5185\u90e8\u6240\u6709\u8017\u65f6\u64cd\u4f5c\u90fd\u662f\u53ef\u53d6\u6d88\u7684\u5f02\u6b65\u64cd\u4f5c&#xff08;\u5728 await \u70b9\u624d\u80fd\u6536\u5230\u53d6\u6d88\u4fe1\u53f7&#xff09;&#xff1b;<\/li>\n<li>\u6ca1\u6709\u7528 except BaseException \u6216\u88f8 except: \u541e\u6389 CancelledError&#xff1b;<\/li>\n<li>\u5b50\u4efb\u52a1\u3001\u6e05\u7406\u903b\u8f91\u90fd\u8981\u663e\u5f0f\u5904\u7406&#xff0c;\u4e0d\u80fd\u4f9d\u8d56\u9690\u5f0f\u884c\u4e3a\u3002<\/li>\n<h4>\u6392\u67e5\u6e05\u5355<\/h4>\n<p>\u9047\u5230&#034;\u8d85\u65f6\u4e86\u4f46\u4efb\u52a1\u8fd8\u5728\u8dd1&#034;&#xff0c;\u6309\u8fd9\u4e2a\u987a\u5e8f\u6392\u67e5&#xff1a;<\/p>\n<ul>\n<li class=\"task-list-item\"> \u4efb\u52a1\u91cc\u6709\u6ca1\u6709 time.sleep()\u3001\u540c\u6b65 IO\u3001CPU \u5bc6\u96c6\u8ba1\u7b97&#xff1f;<\/li>\n<li class=\"task-list-item\"> \u6709\u6ca1\u6709 except BaseException \u6216\u88f8 except: \u541e\u6389 CancelledError&#xff1f;<\/li>\n<li class=\"task-list-item\"> finally \u91cc\u7684\u6e05\u7406\u903b\u8f91\u6709\u6ca1\u6709 await&#xff1f;\u6709\u6ca1\u6709\u88ab\u53d6\u6d88&#xff1f;<\/li>\n<li class=\"task-list-item\"> \u6709\u6ca1\u6709 asyncio.create_task \u521b\u5efa\u7684\u5b50\u4efb\u52a1&#xff1f;\u7236\u4efb\u52a1\u53d6\u6d88\u65f6\u6709\u6ca1\u6709\u7ea7\u8054\u53d6\u6d88&#xff1f;<\/li>\n<li class=\"task-list-item\"> \u6709\u6ca1\u6709\u7528 asyncio.to_thread \u8dd1\u540c\u6b65\u4ee3\u7801&#xff1f;\u7ebf\u7a0b\u662f\u5426\u65e0\u6cd5\u53d6\u6d88&#xff1f;<\/li>\n<li class=\"task-list-item\"> \u5916\u90e8 API \u8bf7\u6c42&#xff08;HTTP\u3001\u6570\u636e\u5e93&#xff09;\u662f\u5426\u771f\u7684\u88ab\u4e2d\u6b62&#xff1f;\u8fd8\u662f\u53ea\u662f\u5ba2\u6237\u7aef\u8d85\u65f6&#xff1f;<\/li>\n<\/ul>\n<h4>\u63a8\u8350\u5b9e\u8df5<\/h4>\n<ul>\n<li>Python 3.11&#043; \u4f18\u5148\u7528 asyncio.timeout &#043; TaskGroup&#xff1b;<\/li>\n<li>\u6240\u6709\u8017\u65f6\u64cd\u4f5c\u90fd\u7528\u53ef\u53d6\u6d88\u7684\u5f02\u6b65\u7248\u672c&#xff1b;<\/li>\n<li>\u6e05\u7406\u903b\u8f91\u653e finally&#xff0c;\u7528 asyncio.shield \u4fdd\u62a4&#xff1b;<\/li>\n<li>\u5b50\u4efb\u52a1\u7528 TaskGroup \u7ba1\u7406&#xff0c;\u81ea\u52a8\u7ea7\u8054\u53d6\u6d88&#xff1b;<\/li>\n<li>\u5de5\u5177\u8c03\u7528\u7edf\u4e00\u5c01\u88c5\u8d85\u65f6 &#043; \u53d6\u6d88 &#043; \u6e05\u7406&#xff08;\u89c1\u7b2c\u4e94\u8282&#xff09;\u3002<\/li>\n<\/ul>\n<h3>\u516b\u3001\u5199\u5728\u6700\u540e<\/h3>\n<p>\u56de\u5230\u5f00\u5934\u7684\u95ee\u9898&#xff1a;asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417&#xff1f;<\/p>\n<p>\u7b54\u6848\u662f&#xff1a;\u4e0d\u4e00\u5b9a\u3002\u5b83\u53ea\u662f\u8ba9 await \u8fd9\u4e00\u4fa7\u4e0d\u518d\u7b49\u5f85\u4e86&#xff0c;\u4efb\u52a1\u672c\u8eab\u662f\u5426\u505c\u6b62&#xff0c;\u53d6\u51b3\u4e8e\u4efb\u52a1\u5185\u90e8\u4ee3\u7801\u662f\u5426&#034;\u914d\u5408&#034;\u53d6\u6d88\u3002<\/p>\n<p>\u8fd9\u4e5f\u662f Agent \u5f00\u53d1\u91cc\u6700\u5bb9\u6613\u8e29\u7684\u5751\u4e4b\u4e00\u2014\u2014\u4f60\u4ee5\u4e3a\u8d85\u65f6\u4e86&#xff0c;\u8d44\u6e90\u5c31\u91ca\u653e\u4e86&#xff0c;\u5b9e\u9645\u4e0a\u540e\u53f0\u53ef\u80fd\u8fd8\u6302\u7740\u4e00\u5806&#034;\u50f5\u5c38\u4efb\u52a1&#034;&#xff0c;\u6084\u6084\u6d88\u8017 CPU\u3001\u8fde\u63a5\u6c60&#xff0c;\u751a\u81f3\u5916\u90e8 API \u7684\u8ba1\u8d39\u3002<\/p>\n<p>\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u4f60\u907f\u5f00\u8fd9\u4e9b\u5751\u3002\u5982\u679c\u4f60\u5728 Agent \u5f00\u53d1\u4e2d\u4e5f\u9047\u5230\u8fc7\u7c7b\u4f3c\u95ee\u9898&#xff0c;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41\u3002<\/p>\n<p>\u9644&#xff1a;\u672c\u6587\u6240\u6709\u4ee3\u7801\u5747\u57fa\u4e8e Python 3.11&#043; \u9a8c\u8bc1&#xff0c;\u5b8c\u6574\u53ef\u8fd0\u884c\u793a\u4f8b\u5df2\u5185\u5d4c\u5728\u5404\u7ae0\u8282\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python Agent \u8e29\u5751\u5b9e\u5f55&#xff1a;asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417&#xff1f; \u6458\u8981&#xff1a;\u672c\u6587\u4ece\u4e00\u6b21\\&#8221;\u8d85\u65f6\u4e86\u4f46 CPU \u8fd8\u5728\u98d9\\&#8221;\u7684\u4e8b\u6545\u51fa\u53d1&#xff0c;\u5206\u6790 Agent \u5f00\u53d1\u4e2d asyncio.wait_for \u8d85\u65f6\u540e\u4efb\u52a1\u6ca1\u6709\u771f\u6b63\u505c\u6b62\u7684\u56db\u4e2a\u9690\u853d\u539f\u56e0&#xff1a;\u540c\u6b65\u963b\u585e\u4ee3\u7801\u65e0\u6cd5\u88ab\u53d6\u6d88\u3001CancelledError \u88ab except Exception \u541e\u6389\u3001finally \u91cc\u7684 await \u88ab\u53d6\u6d88\u3001\u5b50\u4efb\u52a1<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[66,81],"topic":[],"class_list":["post-108511","post","type-post","status-publish","format-standard","hentry","category-server","tag-ai","tag-python"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python Agent \u8e29\u5751\u5b9e\u5f55\uff1aasyncio.wait_for \u8d85\u65f6\u540e\uff0c\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417\uff1f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/108511.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Agent \u8e29\u5751\u5b9e\u5f55\uff1aasyncio.wait_for \u8d85\u65f6\u540e\uff0c\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417\uff1f - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"Python Agent \u8e29\u5751\u5b9e\u5f55&#xff1a;asyncio.wait_for \u8d85\u65f6\u540e&#xff0c;\u4efb\u52a1\u771f\u7684\u505c\u4e86\u5417&#xff1f; 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