Running tests inside a package by module name fails

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From a Python unittest issue:

http://bugs.python.org/issue11178

Reported by a user and verified by me with both Python 2.7 and 3.2.

Trying to run tests by module or package name seems to fail.

directory structure:

    project root: C:\Users\hpierson\Projects\pytest
        \test
            __init__.py (empty)
            testfoo.py (sample test file

running test package by name - no tests discovered

C:\Users\hpierson\Projects\pytest
PS» cpy C:\Python31\Scripts\unit2.py test

----------------------------------------------------------------------
Ran 0 tests in 0.000s



running test module by name - can't find module

C:\Users\hpierson\Projects\pytest
PS» cpy C:\Python31\Scripts\unit2.py test.testfoo
Traceback (most recent call last):
  File "C:\Python31\Scripts\unit2.py", line 7, in <module>
    main_()
  File "C:\Python31\lib\site-packages\unittest2\main.py", line 237, in main_
    main(module=None)
  File "C:\Python31\lib\site-packages\unittest2\main.py", line 94, in __init__
    self.parseArgs(argv)
  File "C:\Python31\lib\site-packages\unittest2\main.py", line 149, in parseArgs
    self.createTests()
  File "C:\Python31\lib\site-packages\unittest2\main.py", line 158, in createTests
    self.module)
  File "C:\Python31\lib\site-packages\unittest2\loader.py", line 133, in loadTestsFromNames
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "C:\Python31\lib\site-packages\unittest2\loader.py", line 133, in <listcomp>
    suites = [self.loadTestsFromName(name, module) for name in names]
  File "C:\Python31\lib\site-packages\unittest2\loader.py", line 101, in loadTestsFromName
    parent, obj = obj, getattr(obj, part)
AttributeError: 'module' object has no attribute 'testfoo'


This isn't reproducable (any more?) on Python 2.7, but is on Python 3.2.

Running "python -m unittest package" doesn't find tests in submodules, but 
without running full discovery even when passed an explicit module name I don't 
think that is avoidable.

Original issue reported on code.google.com by fuzzyman on 19 Dec 2011 at 12:42