title: Why doesn't nosetests find anything?
body: <p>I am switching from python's unittest framework to nosetests, trying to reuse my <code>unittest.TestCase</code>s</p>
  
  <p>After <code>cd</code>ing into my tests package I started nosetests <a href="http://nose.readthedocs.org/en/latest/index.html" rel="noreferrer">as described on their homepage</a>:</p>
  
  <pre><code>./test/$ nosetests
  
  ----------------------------------------------------------------------
  Ran 0 tests in 0.000s
  
  OK
  </code></pre>
  
  <p>Why do I need to specify each module to have nose discover its tests like in the following example?</p>
  
  <pre><code>./test/$ nosetests test_all.py
  .......
  ----------------------------------------------------------------------
  Ran 7 tests in 0.002s
  
  OK
  </code></pre>
  
  <p>Also running the tests one folder above doesn't change anything.</p>
  
  <pre><code>./tests/$ cd ..
  ./$ nosetests
  
  ----------------------------------------------------------------------
  Ran 0 tests in 0.000s
  
  OK
  </code></pre>