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<h1>Source code for airflow.exceptions</h1><div class="highlight"><pre>
<span></span><span class="c1"># -*- coding: utf-8 -*-</span>
<span class="c1">#</span>
<span class="c1"># Licensed to the Apache Software Foundation (ASF) under one</span>
<span class="c1"># or more contributor license agreements. See the NOTICE file</span>
<span class="c1"># distributed with this work for additional information</span>
<span class="c1"># regarding copyright ownership. The ASF licenses this file</span>
<span class="c1"># to you under the Apache License, Version 2.0 (the</span>
<span class="c1"># &quot;License&quot;); you may not use this file except in compliance</span>
<span class="c1"># with the License. You may obtain a copy of the License at</span>
<span class="c1">#</span>
<span class="c1"># http://www.apache.org/licenses/LICENSE-2.0</span>
<span class="c1">#</span>
<span class="c1"># Unless required by applicable law or agreed to in writing,</span>
<span class="c1"># software distributed under the License is distributed on an</span>
<span class="c1"># &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span>
<span class="c1"># KIND, either express or implied. See the License for the</span>
<span class="c1"># specific language governing permissions and limitations</span>
<span class="c1"># under the License.</span>
<span class="c1">#</span>
<span class="c1"># Note: Any AirflowException raised is expected to cause the TaskInstance</span>
<span class="c1"># to be marked in an ERROR state</span>
<div class="viewcode-block" id="AirflowException"><a class="viewcode-back" href="../../_api/airflow/models/index.html#airflow.executors.AirflowException">[docs]</a><span class="k">class</span> <span class="nc">AirflowException</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Base class for all Airflow&#39;s errors.</span>
<span class="sd"> Each custom exception should be derived from this class</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">status_code</span> <span class="o">=</span> <span class="mi">500</span></div>
<span class="k">class</span> <span class="nc">AirflowBadRequest</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when the application or server cannot handle the request&quot;&quot;&quot;</span>
<span class="n">status_code</span> <span class="o">=</span> <span class="mi">400</span>
<span class="k">class</span> <span class="nc">AirflowNotFoundException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when the requested object/resource is not available in the system&quot;&quot;&quot;</span>
<span class="n">status_code</span> <span class="o">=</span> <span class="mi">404</span>
<span class="k">class</span> <span class="nc">AirflowConfigException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">AirflowSensorTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span>
<div class="viewcode-block" id="AirflowRescheduleException"><a class="viewcode-back" href="../../_api/airflow/models/index.html#airflow.executors.AirflowRescheduleException">[docs]</a><span class="k">class</span> <span class="nc">AirflowRescheduleException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Raise when the task should be re-scheduled at a later time.</span>
<span class="sd"> :param reschedule_date: The date when the task should be rescheduled</span>
<span class="sd"> :type reschedule: datetime.datetime</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">reschedule_date</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reschedule_date</span> <span class="o">=</span> <span class="n">reschedule_date</span></div>
<div class="viewcode-block" id="AirflowTaskTimeout"><a class="viewcode-back" href="../../_api/airflow/models/index.html#airflow.executors.AirflowTaskTimeout">[docs]</a><span class="k">class</span> <span class="nc">AirflowTaskTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span></div>
<span class="k">class</span> <span class="nc">AirflowWebServerTimeout</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span>
<div class="viewcode-block" id="AirflowSkipException"><a class="viewcode-back" href="../../_api/airflow/models/index.html#airflow.executors.AirflowSkipException">[docs]</a><span class="k">class</span> <span class="nc">AirflowSkipException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span></div>
<div class="viewcode-block" id="AirflowDagCycleException"><a class="viewcode-back" href="../../_api/airflow/models/index.html#airflow.executors.AirflowDagCycleException">[docs]</a><span class="k">class</span> <span class="nc">AirflowDagCycleException</span><span class="p">(</span><span class="n">AirflowException</span><span class="p">):</span>
<span class="k">pass</span></div>
<span class="k">class</span> <span class="nc">DagNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a DAG is not available in the system&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">DagRunNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a DAG Run is not available in the system&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">DagRunAlreadyExists</span><span class="p">(</span><span class="n">AirflowBadRequest</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when creating a DAG run for DAG which already has DAG run entry&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">DagFileExists</span><span class="p">(</span><span class="n">AirflowBadRequest</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a DAG ID is still in DagBag i.e., DAG file is in DAG folder&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">TaskNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a Task is not available in the system&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">TaskInstanceNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a Task Instance is not available in the system&quot;&quot;&quot;</span>
<span class="k">pass</span>
<span class="k">class</span> <span class="nc">PoolNotFound</span><span class="p">(</span><span class="n">AirflowNotFoundException</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;Raise when a Pool is not available in the system&quot;&quot;&quot;</span>
<span class="k">pass</span>
</pre></div>
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