Convenience method to create a new Enum class.

        `names` can be:

        * A string containing member names, separated either with spaces or
          commas.  Values are auto-numbered from 1.
        * An iterable of member names.  Values are auto-numbered from 1.
        * An iterable of (member name, value) pairs.
        * A mapping of member name -> value.

def _create_(cls, class_name, names=None, module=None, type=None, start=1):
        """Convenience method to create a new Enum class.

        `names` can be:

        * A string containing member names, separated either with spaces or
          commas.  Values are auto-numbered from 1.
        * An iterable of member names.  Values are auto-numbered from 1.
        * An iterable of (member name, value) pairs.
        * A mapping of member name -> value.

        """
        if pyver < 3.0:
            # if class_name is unicode, attempt a conversion to ASCII
            if isinstance(class_name, unicode):
                try:
                    class_name = class_name.encode('ascii')
                except UnicodeEncodeError:
                    raise TypeError('%r is not representable in ASCII' % class_name)
        metacls = cls.__class__
        if type is None:
            bases = (cls, )
        else:
            bases = (type, cls)
        classdict = metacls.__prepare__(class_name, bases)
        _order_ = []

        # special processing needed for names?
        if isinstance(names, basestring):
            names = names.replace(',', ' ').split()
        if isinstance(names, (tuple, list)) and isinstance(names[0], basestring):
            names = [(e, i+start) for (i, e) in enumerate(names)]

        # Here, names is either an iterable of (name, value) or a mapping.
        item = None  # in case names is empty
        for item in names:
            if isinstance(item, basestring):
                member_name, member_value = item, names[item]
            else:
                member_name, member_value = item
            classdict[member_name] = member_value
            _order_.append(member_name)
        # only set _order_ in classdict if name/value was not from a mapping
        if not isinstance(item, basestring):
            classdict['_order_'] = ' '.join(_order_)
        enum_class = metacls.__new__(metacls, class_name, bases, classdict)

        # TODO: replace the frame hack if a blessed way to know the calling
        # module is ever developed
        if module is None:
            try:
                module = _sys._getframe(2).f_globals['__name__']
            except (AttributeError, ValueError):
                pass
        if module is None:
            _make_class_unpicklable(enum_class)
        else:
            enum_class.__module__ = module

        return enum_class