title: Upgrading to Airflow 2, no module named 'airflow.hooks.base'
body: <p>We're upgrading to Airflow 2 so I've changed the hooks import from:</p>
  <pre><code>from airflow.hooks.base_hook import BaseHook
  </code></pre>
  <p>to</p>
  <pre><code>from airflow.hooks.base import BaseHook
  </code></pre>
  <p>and now I'm getting this error:</p>
  <blockquote>
  <p>{plugins_manager.py:225} ERROR - No module named 'airflow.hooks.base'</p>
  </blockquote>
  <p>Here are the docs for this change, but I don't see any other required changes to get airflow.hooks.base to work: <a href="https://github.com/apache/airflow/blob/a17db7883044889b2b2001cefc41a8960359a23f/UPDATING.md#changes-to-import-paths" rel="nofollow noreferrer">https://github.com/apache/airflow/blob/a17db7883044889b2b2001cefc41a8960359a23f/UPDATING.md#changes-to-import-paths</a></p>