def __init__(self, model, admin_site):
        self.model = model
        self.opts = model._meta
        self.admin_site = admin_site
        self.inline_instances = []
        for inline_class in self.inlines:
            inline_instance = inline_class(self.model, self.admin_site)
            self.inline_instances.append(inline_instance)
        if self.list_display not in 'action_checkbox' and self.actions is not None:
            self.list_display = ['action_checkbox'] +  list(self.list_display)
        if not self.list_display_links:
            for name in self.list_display:
                if name != 'action_checkbox':
                    self.list_display_links = [name]
                    break
        super(ModelAdmin, self).__init__()
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/admin/options.py/ModelAdmin.__init__/swapped operands of `not in`