Hi, Because I like doctests, I have the following set in my .noserc file: with-doctest=1 This setting breaks numpy.test() like this: In [2]: numpy.test() Running unit tests for numpy NumPy version 1.5.0.dev8029 NumPy is installed in /Users/mb312/usr/local/lib/python2.6/site-packages/numpy Python version 2.6.4 (r264:75706, Dec 22 2009, 14:55:30) [GCC 4.2.1 (Apple Inc. build 5646) (dot 1)] nose version 0.11.1 ------------------------------------------------------------ Traceback (most recent call last):  File "<ipython console>", line 1, in <module>  File "/Users/mb312/usr/local/lib/python2.6/site-packages/numpy/testing/nosetester.py", line 335, in test    t = NumpyTestProgram(argv=argv, exit=False, plugins=plugins)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/core.py", line 113, in __init__    argv=argv, testRunner=testRunner, testLoader=testLoader)  File "/Users/mb312/usr/local/lib/python2.6/unittest.py", line 816, in __init__    self.parseArgs(argv)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/core.py", line 130, in parseArgs    self.config.configure(argv, doc=self.usage())  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/config.py", line 249, in configure    options, args = self._parseArgs(argv, cfg_files)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/config.py", line 237, in _parseArgs    return parser.parseArgsAndConfigFiles(argv[1:], cfg_files)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/config.py", line 132, in parseArgsAndConfigFiles    self._applyConfigurationToValues(self._parser, config, values)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/config.py", line 118, in _applyConfigurationToValues    name=name, filename=filename)  File "/Users/mb312/usr/local/lib/python2.6/site-packages/nose-0.11.1-py2.6.egg/nose/config.py", line 234, in warn_sometimes    raise ConfigError(msg) ConfigError: Error reading config file '/Users/mb312/.noserc': no such option 'with-doctest' The reason for this is that, in the numpy testing machinery (nostester.py, around line 249, the 'doctest' plugin is pulled out of the plugins list, because we prefer our own numpy doctest tester. Accordingly, when we initialize our noseclasses.NumpyTestProgram, the 'doctest' plugin is not present, and therefore cannot parse any of its configuration, and hence the error. An obvious idea is to allow the testing machinery to parse all the configs, including the doctest configs, then throw away the native (non-numpy) doctest plugin before we get to collecting and running the tests. I've attached a patch that does this; it's a little bit magic because of the class structure of nose, but I hope it makes sense. I'd be very grateful for a review, Thanks a lot, Matthew