如何为表单电子邮件和密码字段设置属性？

Question

我设法为TextInput和EmailField设置属性，但不适用于PasswordInput ...

我的注册表格：

class RegisterForm(UserCreationForm):
    class Meta:
        model = User
        fields = ("username", "email", "password1", "password2")

        widgets = {
            'username': forms.TextInput(attrs = {'class': 'nice_input', 'placeholder': 'Name'}),
            'email': forms.EmailInput(attrs = {'class': 'nice_input', 'placeholder': 'Email'}),
            'password1': forms.PasswordInput(attrs = {'class': 'nice_input', 'placeholder': 'Password'}),
            'password2': forms.PasswordInput(attrs = {'class': 'nice_input', 'placeholder': 'Password confirmation'}),
        }

在admin.py中输入我的UserCreationForm：

class UserCreationForm(forms.ModelForm):
    password1 = forms.CharField()
    password2 = forms.CharField()

    class Meta:
        model = User
        fields = ('email',)

    def clean_password2(self):
        password1 = self.cleaned_data.get("password1")
        password2 = self.cleaned_data.get("password2")
        if password1 and password2 and password1 != password2:
            raise forms.ValidationError("Passwords don't match")
        return password2

    def save(self, commit=True):
        user = super().save(commit=False)
        user.set_password(self.cleaned_data["password1"])
        if commit:
            user.save()
        return user

对于用户名和电子邮件字段，一切正常，但对于其他字段则不行...

我应该尝试什么？