six 1.4.0 breaks wsme "tuple index out of range"

[Jay Buffington]

wsme doesn't work with six 1.4.0 or 1.41 (both released a couple of days ago). WSME 0.4 failed in the same way.

    $ pip list
    pip (1.4.1)
    setuptools (0.9.8)
    simplegeneric (0.8.1)
    six (1.4.0)
    WebOb (1.2.3)
    WSME (0.5b2)

    $ python
    Python 2.6.6 (r266:84292, Sep 11 2012, 05:13:24)
    [GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import wsme
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/home/jaybuff/.wsme/lib/python2.6/site-packages/wsme/__init__.py", line 1, in <module>
        from wsme.api import signature
      File "/home/jaybuff/.wsme/lib/python2.6/site-packages/wsme/api.py", line 7, in <module>
        import wsme.types
      File "/home/jaybuff/.wsme/lib/python2.6/site-packages/wsme/types.py", line 585, in <module>
        class Base(six.with_metaclass(BaseMeta)):
      File "/home/jaybuff/.wsme/lib/python2.6/site-packages/six.py", line 566, in with_metaclass
        return meta("NewBase", bases, {})
      File "/home/jaybuff/.wsme/lib/python2.6/site-packages/wsme/types.py", line 576, in __new__
        if bases[0] is not object and '__registry__' not in dct:
    IndexError: tuple index out of range
    >>>

    $ pip install 'six<1.4.0'
    Downloading/unpacking six<1.4.0
      Downloading six-1.3.0.tar.gz
      Running setup.py egg_info for package six
    Installing collected packages: six
      Found existing installation: six 1.4.0
        Uninstalling six:
          Successfully uninstalled six
      Running setup.py install for six
    Successfully installed six
    Cleaning up...

    $ python
    Python 2.6.6 (r266:84292, Sep 11 2012, 05:13:24)
    [GCC 4.4.6 20120305 (Red Hat 4.4.6-4)] on linux2
    Type "help", "copyright", "credits" or "license" for more information.
    >>> import wsme
    >>>

[Christophe de Vienne (cdevienne)]

This issue was identified and fixed in the repository.
The next release (0.5b3) will be out soon.