edit.py 文件源码

def __new__(cls, name, bases, attrs):
        get_form = attrs.get('get_form')
        if get_form and inspect.isfunction(get_form):
            try:
                inspect.getcallargs(get_form, None)
            except TypeError:
                warnings.warn(
                    "`%s.%s.get_form` method must define a default value for "
                    "its `form_class` argument." % (attrs['__module__'], name),
                    RemovedInDjango110Warning, stacklevel=2
                )

                def get_form_with_form_class(self, form_class=None):
                    if form_class is None:
                        form_class = self.get_form_class()
                    return get_form(self, form_class=form_class)
                attrs['get_form'] = get_form_with_form_class
        return super(FormMixinBase, cls).__new__(cls, name, bases, attrs)