如何摆脱由Django Form的RadioSelect生成的虚假选择

如何摆脱由Django Form的RadioSelect生成的虚假选择

即使没有blank = True，它也会显示额外的输入。我创建了一个新的小部件：

from itertools import chainfrom django.forms import RadioSelectfrom django.utils.encoding import force_unipreclass RadioSelectNotNull(RadioSelect):    def get_renderer(self, name, value, attrs=None, choices=()):        """Returns an instance of the renderer."""        if value is None: value = ''        str_value = force_unipre(value) # Normalize to string.        final_attrs = self.build_attrs(attrs)        choices = list(chain(self.choices, choices))        if choices[0][0] == '': choices.pop(0)        return self.renderer(name, str_value, final_attrs, choices)