Load a module string like django.contrib.markup.templatetags.markup into the registry
        Iterates through the module looking for callables w/ attributes matching Native Tags

def load_module(self, module):
        """
        Load a module string like django.contrib.markup.templatetags.markup into the registry
        Iterates through the module looking for callables w/ attributes matching Native Tags
        """
        if isinstance(module, basestring) and module.find('.') > -1:
            a = module.split('.')
            module = ('.%s' % a[-1], '.'.join(a[:-1]))
        try:
            module = import_module(*module)
        except Exception, e:
            return e
        
        for name in dir(module):
            if name.startswith('_'): continue
            obj = getattr(module, name)
            if callable(obj):
                for tag in settings.TAG_TYPES:
                    if hasattr(obj, tag) and getattr(obj, tag) in (1, True):
                        name = getattr(obj, 'name', obj.__name__)
                        if name in self[tag]:
                            continue
                        if hasattr(obj, 'name'):
                            self.register(tag, getattr(obj, 'name'), obj)
                        else:
                            self.register(tag, obj)