title: How do I run a pytest fixture once before all tests in a specific directory?
body: <p>This is my directory structure:</p>
  <pre><code>test_directory/
  ├── test_feature_1/
  │   ├── test1.py
  │   └── test2.py
  └── test_feature_2/
      ├── test3.py
      └── test4.py
  </code></pre>
  <p>I want to run a fixture function ONCE and then execute each of the tests in <code>test_feature_1</code> directory. After that, teardown the fixture. I do not want to execute this fixture for other tests in other directories.</p>
  <p>Which scope should I use and where should I define my <code>conftest.py</code>? Thanks!</p>