title: Can python doctest ignore some output lines?
body: <p>I'd like to write a doctest like this:</p>
  
  <pre><code>"""
  &gt;&gt;&gt; print a.string()
            foo : a
            bar : b
           date : &lt;I don't care about the date output&gt;
            baz : c
  """
  </code></pre>
  
  <p>Is there any way to do this?  I think it would make more sense to switch to unittest, but I'm curious whether it's possible to specify a range of output that shouldn't be matched for the test in doctest.</p>
  
  <p>Thanks!</p>