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copied!<p><strong>Updated</strong> - <code>__file__</code> is the path name from which the <em>current module</em> was loaded, so naturally using <code>__file__</code> inside DynamicTestCase.py will result in the path DynamicTestCase.py. However, you can just pass the path into <code>setDocstring()</code> from subclasses like this:</p> <p><strong>DynamicTestCase.py</strong>:</p> <pre><code>class DynamicTestCase(unittest.TestCase): def setDocstring(self, docstring=None): if docstring is None: docstring = __file__ if os.path.exists(docstring): name = os.path.split(docstring)[1] docstring = os.path.splitext(name)[0] setattr(self, '__doc__', docstring) </code></pre> <p><strong>MyTestCase.py</strong>:</p> <pre><code>class MyTestCase(DynamicTestCase): def __init__(self, *args, **kwargs): DynamicTestCase.__init__(self, *args, **kwargs) self.setDocstring(__file__) def test_print_docstring(self): print 'MyTestCase Docstring = ', self.__doc__ def test_new_docstring(self): self.setDocstring('hello') print 'MyTestCase Docstring = ', self.__doc__ </code></pre> <p>Output:</p> <pre><code>MyTestCase Docstring = MyTestCase MyTestCase Docstring = hello </code></pre> <hr> <p><strong>Rest of answer</strong></p> <p>In your original code above <code>__name__</code> is a string, not a class. Jython rightly rejects altering the <code>__doc__</code> attribute on the <code>str</code> type.</p> <p>Could you explain a bit about <em>why</em> you want to change TestCase's docstring? For example, you could subclass TestCase and give your own docstring:</p> <pre><code>class MyTestCase(unittest.TestCase): "Docstring of MyTestCase" </code></pre> <p>Not sure if you've tried it yet, but the <a href="http://pypi.python.org/pypi/unittest2" rel="nofollow">unittest2 package's</a> TestCase has <code>setUpClass, tearDownClass</code> class methods. It's a backport of Python 2.7's improvements to work with Python 2.6 and prior.</p> <p>Jython allows you to set the <code>__doc__</code> of new-style classes, but CPython does not. For that reason you might want to find another way to accomplish your goal if you want your code to be portable:</p> <pre><code>Jython 2.2.1 on java1.6.0_24 >>> unittest.TestCase.__doc__ = 'foo bar' >>> unittest.TestCase.__doc__ 'foo bar' Python 2.6.6 (r266:84292, Feb 12 2011, 01:07:21) >>> unittest.TestCase.__doc__ = 'foo bar' AttributeError: attribute '__doc__' of 'type' objects is not writable </code></pre>

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