class StylesForm(forms.Form):
def __init__(self,*args,**kwargs):
self.site_id = kwargs.pop('site_id')
super(StylesForm,self).__init__(*args,**kwargs)
当然，在创建对象之前，你无法访问self.site_id，因此该行：
height = forms.CharField(widget=forms.TextInput(attrs={'size':site_id}))
没有意义。创建表单后，必须将属性添加到窗口小部件。尝试这样的事情：
class StylesForm(forms.Form):
def __init__(self,*args,**kwargs):
self.site_id = kwargs.pop('site_id')
super(StylesForm,self).__init__(*args,**kwargs)
self.fields['height'].widget = forms.TextInput(attrs={'size':site_id})
height = forms.CharField()
602392714
清零编程群