Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/orders/create/

Django Version: 3.0.3
Python Version: 3.7.4
Installed Applications:
['shop.apps.ShopConfig',
 'cart.apps.CartConfig',
 'orders.apps.OrdersConfig',
 'payment.apps.PaymentConfig',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'debug_toolbar']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\utils\deprecation.py", line 96, in __call__
    response = self.process_response(request, response)
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\contrib\sessions\middleware.py", line 58, in process_response
    request.session.save()
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\contrib\sessions\backends\db.py", line 83, in save
    obj = self.create_model_instance(data)
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\contrib\sessions\backends\db.py", line 70, in create_model_instance
    session_data=self.encode(data),
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\contrib\sessions\backends\base.py", line 105, in encode
    serialized = self.serializer().dumps(session_dict)
  File "E:\PracticePython\MyShop\venv\lib\site-packages\django\core\signing.py", line 87, in dumps
    return json.dumps(obj, separators=(',', ':')).encode('latin-1')
  File "C:\Users\Darken\AppData\Local\Programs\Python\Python37\lib\json\__init__.py", line 238, in dumps
    **kw).encode(obj)
  File "C:\Users\Darken\AppData\Local\Programs\Python\Python37\lib\json\encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "C:\Users\Darken\AppData\Local\Programs\Python\Python37\lib\json\encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
  File "C:\Users\Darken\AppData\Local\Programs\Python\Python37\lib\json\encoder.py", line 179, in default
    raise TypeError(f'Object of type {o.__class__.__name__} '

Exception Type: TypeError at /orders/create/
Exception Value: Object of type Decimal is not JSON serializable