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django-rest-framework: int() argument must be a string, a bytes-like object or a number, not Deferred Attribute


django-rest-framework: int() argument must be a string, a bytes-like object or a number, not Deferred Attribute

By : user2172176
Date : October 24 2020, 08:10 PM
this will help First of all you need to post exception.
But the problem is that you pass class and not instance of class to your serializer.
code :
try:
    car = Car.objects.get(pk=pk)
except Car.DoesNotExist:
    return HttpResponse(status=404)

if request.method == 'GET':
    serializer = CarsSerializer(car)  #  <-- car not Car (this type of error should be fixed everywhere)
    return JsonResponse(serializer.data)


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Django: TypeError: int() argument must be a string, a bytes-like object or a number, not

Django: TypeError: int() argument must be a string, a bytes-like object or a number, not


By : Godson Baptiste
Date : March 29 2020, 07:55 AM
seems to work fine Problem solved, thanks to @MosesKoledoye.
I deleted the migrations folder inside the app that was causing the problem. And recreated it by running 'python manage.py makemigrations ' I then migrated to the server, and everything was great.
Django - int() argument must be a string, a bytes-like object or a number, not 'Association'

Django - int() argument must be a string, a bytes-like object or a number, not 'Association'


By : Prashant
Date : March 29 2020, 07:55 AM
help you fix your problem Cleaned data for association returns object, so you can edit these lines:
code :
asoc_pk = form.cleaned_data.get('association')
asoc = Association.objects.get(pk=asoc_pk)
asoc = form.cleaned_data.get('association')
Django REST Framework - int() argument must be a string, a bytes-like object or a number, not 'SimpleLazyObject'

Django REST Framework - int() argument must be a string, a bytes-like object or a number, not 'SimpleLazyObject'


By : user758704
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You could use self.context for this http://www.django-rest-framework.org/api-guide/serializers/#including-extra-context
If you are using GenericAPIView context is passed automatically
code :
class ContactSerializer(serializers.HyperlinkedModelSerializer):
    phone_numbers = ContactPhoneNumberSerializer(source='contactphonenumber_set', many=True)

    class Meta:
        model = Contact
        fields = ('url', 'first_name', 'last_name', 'full_name', 'date_of_birth', 'phone_numbers')

    def create(self, validated_data):
        phone_numbers = validated_data.pop('contactphonenumber_set')
        emails = validated_data.pop('contactemail_set')
        instance = Contact.objects.create(user=self.context['request'].user, **validated_data)
        for phone_data in phone_numbers:
            ContactPhoneNumber.objects.create(contact=instance, **phone_data)
        return instance
class ContactViewSet(viewsets.ModelViewSet):
    serializer_class = ContactSerializer
    permission_classes = (IsAuthenticated, AdminAuthenticationPermission,)

    def get_queryset(self):
        return Contact.objects.filter(user=self.request.user)
Django: int() argument must be a string, a bytes-like object or a number, not 'NoneType'

Django: int() argument must be a string, a bytes-like object or a number, not 'NoneType'


By : johnali3n
Date : March 29 2020, 07:55 AM
This might help you Solution:
I just added two hidden inputs, doubled generated data to them and pulled values to the view.
code :
elif 'check' in request.POST:

    num1 = int(request.POST.get("int1", ""))
    num2 = int(request.POST.get("int2", ""))

        if int(user_sum) == int(num1 + num2):
            exclam = 'Right, ' + str(num1 + num2)
        else:
            exclam = 'Wrong, ' + str(num1 + num2)
...
<tr>
    <input type="hidden" name="int1" value=" {{ num1 }} ">
    <input type="hidden" name="int2" value=" {{ num2 }} ">
    <td><span> {{ num1 }} </span></td>
    <td>+</td>
    <td><span> {{ num2 }} </span></td>
    <td>=</td>
    <td style="padding-top: 6px"> {{ form.as_p }} </td>
</tr>
...
Django - int() argument must be a string, a bytes-like object or a number, not 'SimpleLazyObject'

Django - int() argument must be a string, a bytes-like object or a number, not 'SimpleLazyObject'


By : user3511599
Date : March 29 2020, 07:55 AM
wish helps you I think this is because
When obj.likes.add(user) line of code being hit, The user is not somehow authenticated, Which returns Django's default request user object, which is an instance of SimpleLazyObject. You can either make the view as login_required or you can try to check whether the user is authenticated at the point or not.
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