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<section id="exceptions">
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<span id="asyncio-exceptions"></span><h1>异常<a class="headerlink" href="#exceptions" title="永久链接至标题">¶</a></h1>
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<p><strong>源代码:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.8/Lib/asyncio/exceptions.py">Lib/asyncio/exceptions.py</a></p>
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<dl class="exception">
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<dt id="asyncio.TimeoutError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">TimeoutError</code><a class="headerlink" href="#asyncio.TimeoutError" title="永久链接至目标">¶</a></dt>
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<dd><p>该操作已超过规定的截止日期。</p>
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<div class="admonition important">
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<p class="admonition-title">重要</p>
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<p>这个异常与内置 <a class="reference internal" href="exceptions.html#TimeoutError" title="TimeoutError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">TimeoutError</span></code></a> 异常不同。</p>
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</div>
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</dd></dl>
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<dl class="exception">
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<dt id="asyncio.CancelledError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">CancelledError</code><a class="headerlink" href="#asyncio.CancelledError" title="永久链接至目标">¶</a></dt>
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<dd><p>该操作已被取消。</p>
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<p>取消asyncio任务时，可以捕获此异常以执行自定义操作。在几乎所有情况下，都必须重新引发异常。</p>
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<div class="versionchanged">
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<p><span class="versionmodified changed">在 3.8 版更改: </span><a class="reference internal" href="#asyncio.CancelledError" title="asyncio.CancelledError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">CancelledError</span></code></a> 现在是 <a class="reference internal" href="exceptions.html#BaseException" title="BaseException"><code class="xref py py-class docutils literal notranslate"><span class="pre">BaseException</span></code></a> 的子类。</p>
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</dd></dl>
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<dl class="exception">
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<dt id="asyncio.InvalidStateError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">InvalidStateError</code><a class="headerlink" href="#asyncio.InvalidStateError" title="永久链接至目标">¶</a></dt>
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<dd><p><a class="reference internal" href="asyncio-task.html#asyncio.Task" title="asyncio.Task"><code class="xref py py-class docutils literal notranslate"><span class="pre">Task</span></code></a> 或 <a class="reference internal" href="asyncio-future.html#asyncio.Future" title="asyncio.Future"><code class="xref py py-class docutils literal notranslate"><span class="pre">Future</span></code></a> 的内部状态无效。</p>
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<p>在为已设置结果值的未来对象设置结果值等情况下，可以引发此问题。</p>
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</dd></dl>
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<dl class="exception">
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<dt id="asyncio.SendfileNotAvailableError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">SendfileNotAvailableError</code><a class="headerlink" href="#asyncio.SendfileNotAvailableError" title="永久链接至目标">¶</a></dt>
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<dd><p>"sendfile" 系统调用不适用于给定的套接字或文件类型。</p>
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<p>子类 <a class="reference internal" href="exceptions.html#RuntimeError" title="RuntimeError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">RuntimeError</span></code></a> 。</p>
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<dl class="exception">
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<dt id="asyncio.IncompleteReadError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">IncompleteReadError</code><a class="headerlink" href="#asyncio.IncompleteReadError" title="永久链接至目标">¶</a></dt>
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<dd><p>请求的读取操作未完全完成。</p>
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<p>由 <a class="reference internal" href="asyncio-stream.html#asyncio-streams"><span class="std std-ref">asyncio stream APIs</span></a> 提出</p>
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<p>此异常是 <a class="reference internal" href="exceptions.html#EOFError" title="EOFError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">EOFError</span></code></a> 的子类。</p>
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<dl class="attribute">
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<dt id="asyncio.IncompleteReadError.expected">
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<code class="sig-name descname">expected</code><a class="headerlink" href="#asyncio.IncompleteReadError.expected" title="永久链接至目标">¶</a></dt>
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<dd><p>预期字节的总数（ <a class="reference internal" href="functions.html#int" title="int"><code class="xref py py-class docutils literal notranslate"><span class="pre">int</span></code></a> ）。</p>
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</dd></dl>
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<dl class="attribute">
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<dt id="asyncio.IncompleteReadError.partial">
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<code class="sig-name descname">partial</code><a class="headerlink" href="#asyncio.IncompleteReadError.partial" title="永久链接至目标">¶</a></dt>
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<dd><p>到达流结束之前读取的 <a class="reference internal" href="stdtypes.html#bytes" title="bytes"><code class="xref py py-class docutils literal notranslate"><span class="pre">bytes</span></code></a> 字符串。</p>
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<dl class="exception">
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<dt id="asyncio.LimitOverrunError">
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<em class="property">exception </em><code class="sig-prename descclassname">asyncio.</code><code class="sig-name descname">LimitOverrunError</code><a class="headerlink" href="#asyncio.LimitOverrunError" title="永久链接至目标">¶</a></dt>
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<dd><p>在查找分隔符时达到缓冲区大小限制。</p>
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<p>由 <a class="reference internal" href="asyncio-stream.html#asyncio-streams"><span class="std std-ref">asyncio stream APIs</span></a> 提出</p>
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<dl class="attribute">
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<dt id="asyncio.LimitOverrunError.consumed">
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<code class="sig-name descname">consumed</code><a class="headerlink" href="#asyncio.LimitOverrunError.consumed" title="永久链接至目标">¶</a></dt>
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<dd><p>要消耗的字节总数。</p>
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</dd></dl>
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最后更新于 12月 09, 2024.
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