title: Is there a convention to distinguish Python integration tests from unit tests?
body: <p>The most common way of structuring a Python package with unit tests is as follows:</p>
  
  <pre><code>package/
      __init__.py
      module_1.py
      module_2.py
      module_n.py
      test/
          __init__.py
          test_module_1.py
          test_module_2.py
          test_module_n.py
  </code></pre>
  
  <p>I would like to distinguish between unit tests (of methods and functions) and integration tests (using the whole package and possibly involving other resources). Perhaps these tests should be in different packages, have different filenames, and/or include certain docstring comments.</p>
  
  <p>Is there a standard convention for doing this?</p>