如何解决“无法解压缩不可编辑的配置文件对象”错误？

Question

我正在用django为我的大学作业做一个项目。我想用django做一个跟随系统，我写了代码，得到了以下错误

cannot unpack non-iterable Profile object

在模型.py在

class Profile(models.Model):
    user=models.OneToOneField(User, on_delete=models.CASCADE)
    image=models.ImageField(default='default.jpg',upload_to='profile_pics',blank=True)
    description=models.TextField(max_length=200, blank=True)
    following = models.ManyToManyField(User, related_name='followed_by', blank=True)
    def __str__(self):
        return f'{self.user.username} Profile'

    def saveimg(self):
        super().save()

        img=Image.open(self.image.path)

        if img.height>300 or img.width>300:
            output_size=(300,300)
            img.thumbnail(output_size)
            img.saveimg(self.image.path)

在视图.py在

^{pr2}$

在网址.py在

path('user/<str:username>/follow', views.follow_user,name='follow_user'),

回溯

回溯：

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\exception.py" in inner 34. response = get_response(request)

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\base.py" in _get_response 126. response = self.process_exception_by_middleware(e, request)

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\base.py" in _get_response 124. response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "D:\sb\blog\views.py" in follow_user 186. if request.user.profile.following.filter(creator).exists():

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\manager.py" in manager_method 82. return getattr(self.get_queryset(), name)(*args, **kwargs)

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\query.py" in filter 844. return self._filter_or_exclude(False, *args, **kwargs)

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\query.py" in _filter_or_exclude 862. clone.query.add_q(Q(*args, **kwargs))

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in add_q 1263. clause, _ = self._add_q(q_object, self.used_aliases)

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in _add_q 1287. split_subq=split_subq,

File "C:\Users\Mustafa Lakhani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in build_filter 1161. arg, value = filter_expr

Exception Type: TypeError at /user/mustafalakhani/follow Exception Value: cannot unpack non-iterable Profile object