helpers.py 文件源码

def label_tag(self):
        classes = []
        contents = conditional_escape(force_text(self.field.label))
        if self.is_checkbox:
            classes.append('vCheckboxLabel')

        if self.field.field.required:
            classes.append('required')
        if not self.is_first:
            classes.append('inline')
        attrs = {'class': ' '.join(classes)} if classes else {}
        # checkboxes should not have a label suffix as the checkbox appears
        # to the left of the label.
        return self.field.label_tag(
            contents=mark_safe(contents), attrs=attrs,
            label_suffix='' if self.is_checkbox else None,
        )