title: Airflow not loading dags in /usr/local/airflow/dags
body: <p>Airflow seems to be skipping the dags I added to /usr/local/airflow/dags.</p>
  
  <p>When I run</p>
  
  <pre><code>airflow list_dags
  </code></pre>
  
  <p>The output shows</p>
  
  <pre><code>[2017-08-06 17:03:47,220] {models.py:168} INFO - Filling up the DagBag from /usr/local/airflow/dags
  
  
  -------------------------------------------------------------------
  DAGS
  -------------------------------------------------------------------
  example_bash_operator
  example_branch_dop_operator_v3
  example_branch_operator
  example_http_operator
  example_passing_params_via_test_command
  example_python_operator
  example_short_circuit_operator
  example_skip_dag
  example_subdag_operator
  example_subdag_operator.section-1
  example_subdag_operator.section-2
  example_trigger_controller_dag
  example_trigger_target_dag
  example_xcom
  latest_only
  latest_only_with_trigger
  test_utils
  tutorial
  </code></pre>
  
  <p>But this doesn't include the dags in /usr/local/airflow/dags</p>
  
  <pre><code>ls -la /usr/local/airflow/dags/
  total 20
  drwxr-xr-x 3 airflow airflow 4096 Aug  6 17:08 .
  drwxr-xr-x 4 airflow airflow 4096 Aug  6 16:57 ..
  -rw-r--r-- 1 airflow airflow 1645 Aug  6 17:03 custom_example_bash_operator.py
  drwxr-xr-x 2 airflow airflow 4096 Aug  6 17:08 __pycache__
  </code></pre>
  
  <p>Is there some other condition that neededs to be satisfied for airflow to identify a DAG and load it?</p>