SplitDateTimeWidget and is_valid problem

[carson]

this the models.py

class Rent_Car(models.Model):
    rent_time = models.DateTimeField( blank=False)
    car = models.ForeignKey(Cop_Car, on_delete=models.SET_NULL, null=True, blank=False)
    user = models.ForeignKey(Users, on_delete=models.SET_NULL, null=True, blank=False)
    car_rage = models.IntegerField(null=False, blank=False)
    rent_mark = models.CharField(max_length=300", null=True, blank=True)

this the forms.py

class RentcarForm(forms.ModelForm):
    class Meta:
        model = models.Rent_Car
        fields = '__all__'
        # model.rent_time = forms.DateTimeField(widget=forms.SplitDateTimeWidget)
        # initial = datetime.datetime.now()
        # model.rent_time = datetime.datetime.now()
        widgets = {
            'rent_time': forms.SplitDateTimeWidget(date_attrs={'class':'form-control', 'type':'date'},time_attrs={'class':'form-control', 'type':'time'},date_format='%Y-%m-%d'),
        }

    def __init__(self,*args,**kwargs):
        super().__init__(*args,**kwargs)
        for field_name,field in self.fields.items():
            field.widget.attrs.update({'class':'form-control'})

this is the views.py

def rentcar_add_edit(request, rid=None):

    rentcar_obj = models.Rent_Car.objects.filter(pk=rid).first()

    if request.method == 'GET':
        if rid:
            rentcar_form = RentcarForm(instance=rentcar_obj)
        else:
            rentcar_form = RentcarForm(initial={'rent_time': datetime.datetime.now(), 'user': request.user}, instance=rentcar_obj)
        return render(request, 'edit.html', {'rentcar_form': rentcar_form})

    else:
        rentcar_form = RentcarForm(request.POST, instance=rentcar_obj)
        if rentcar_form.is_valid():
            print(rentcar_form.errors)
            print(rentcar_form.cleaned_data)
            rentcar_form.save()
            messages.success(request,'ok！')
            return redirect('list')
        else:
            return render(request, 'edit.html', {'rentcar_form': rentcar_form})

when post the rent_time. show the error' 'list' object has no attribute 'strip

the traceback below:

D:\Python\lib\site-packages\django\core\handlers\exception.py in inner
            response = get_response(request) …
▼ Local vars
Variable	Value
exc	
AttributeError("'list' object has no attribute 'strip'")
get_response	
<bound method BaseHandler._get_response of <django.core.handlers.wsgi.WSGIHandler object at 0x000001BBE3C72EC8>>
request	
<WSGIRequest: POST '/rentcar/add/'>
D:\Python\lib\site-packages\django\core\handlers\base.py in _get_response
                response = self.process_exception_by_middleware(e, request) …
▼ Local vars
Variable	Value
callback	
<function rentcar_add_edit at 0x000001BBE3B0A1F8>
callback_args	
()
callback_kwargs	
{}
middleware_method	
<bound method CsrfViewMiddleware.process_view of <django.middleware.csrf.CsrfViewMiddleware object at 0x000001BBE3CAC788>>
request	
<WSGIRequest: POST '/rentcar/add/'>
resolver	
<URLResolver 'carsoft.urls' (None:None) '^/'>
resolver_match	
ResolverMatch(func=rentcar.views.rentcar_add_edit, args=(), kwargs={}, url_name=add, app_names=[], namespaces=[], route=rentcar/add/)
response	
None
self	
<django.core.handlers.wsgi.WSGIHandler object at 0x000001BBE3C72EC8>
wrapped_callback	
<function rentcar_add_edit at 0x000001BBE3B0A1F8>
D:\Python\lib\site-packages\django\core\handlers\base.py in _get_response
                response = wrapped_callback(request, *callback_args, **callback_kwargs) …
▼ Local vars
Variable	Value
callback	
<function rentcar_add_edit at 0x000001BBE3B0A1F8>
callback_args	
()
callback_kwargs	
{}
middleware_method	
<bound method CsrfViewMiddleware.process_view of <django.middleware.csrf.CsrfViewMiddleware object at 0x000001BBE3CAC788>>
request	
<WSGIRequest: POST '/rentcar/add/'>
resolver	
<URLResolver 'carsoft.urls' (None:None) '^/'>
resolver_match	
ResolverMatch(func=rentcar.views.rentcar_add_edit, args=(), kwargs={}, url_name=add, app_names=[], namespaces=[], route=rentcar/add/)
response	
None
self	
<django.core.handlers.wsgi.WSGIHandler object at 0x000001BBE3C72EC8>
wrapped_callback	
<function rentcar_add_edit at 0x000001BBE3B0A1F8>
D:\Python\lib\site-packages\django\contrib\auth\decorators.py in _wrapped_view
                return view_func(request, *args, **kwargs) …
▼ Local vars
Variable	Value
args	
()
kwargs	
{}
login_url	
None
redirect_field_name	
'next'
request	
<WSGIRequest: POST '/rentcar/add/'>
test_func	
<function login_required.<locals>.<lambda> at 0x000001BBE3B0A0D8>
view_func	
<function rentcar_add_edit at 0x000001BBE3AFACA8>
D:\202008\carsoft\rentcar\views.py in rentcar_add_edit
        if rentcar_form.is_valid(): …
▼ Local vars
Variable	Value
rentcar_form	
<RentcarForm bound=True, valid=True, fields=(rent_time;car;user;car_rage;rent_mark)>
rentcar_obj	
None
request	
<WSGIRequest: POST '/rentcar/add/'>
rid	
None
D:\Python\lib\site-packages\django\forms\forms.py in is_valid
        return self.is_bound and not self.errors …
▼ Local vars
Variable	Value
self	
<RentcarForm bound=True, valid=True, fields=(rent_time;car;user;car_rage;rent_mark)>
D:\Python\lib\site-packages\django\forms\forms.py in errors
            self.full_clean() …
▼ Local vars
Variable	Value
self	
<RentcarForm bound=True, valid=True, fields=(rent_time;car;user;car_rage;rent_mark)>
D:\Python\lib\site-packages\django\forms\forms.py in full_clean
        self._clean_fields() …
▼ Local vars
Variable	Value
self	
<RentcarForm bound=True, valid=True, fields=(rent_time;car;user;car_rage;rent_mark)>
D:\Python\lib\site-packages\django\forms\forms.py in _clean_fields
                    value = field.clean(value) …
▼ Local vars
Variable	Value
field	
<django.forms.fields.DateTimeField object at 0x000001BBE41AAC88>
name	
'rent_time'
self	
<RentcarForm bound=True, valid=True, fields=(rent_time;car;user;car_rage;rent_mark)>
value	
['2020-09-02', '11:17']
D:\Python\lib\site-packages\django\forms\fields.py in clean
        value = self.to_python(value) …
▼ Local vars
Variable	Value
self	
<django.forms.fields.DateTimeField object at 0x000001BBE41AAC88>
value	
['2020-09-02', '11:17']
D:\Python\lib\site-packages\django\forms\fields.py in to_python
        result = super().to_python(value) …
▼ Local vars
Variable	Value
__class__	
<class 'django.forms.fields.DateTimeField'>
self	
<django.forms.fields.DateTimeField object at 0x000001BBE41AAC88>
value	
['2020-09-02', '11:17']
D:\Python\lib\site-packages\django\forms\fields.py in to_python
        value = value.strip() …
▼ Local vars
Variable	Value
self	
<django.forms.fields.DateTimeField object at 0x000001BBE41AAC88>
value	
['2020-09-02', '11:17']

looks the widgets SplitDateTimeWidget return the datetime field with a list not a str.

[Carlton Gibson]

Please review the ​`MultiWidget` docs. There's an example implementing a subclass to work with DateField, rather than the expected MultiValueField. You can adapt that for your use-case.

Please also review TicketClosingReasons/UseSupportChannels, as the issue tracker is not the appropriate place for this kind of question about usage errors.
Thanks.