title: How to solve the a celery worker configuration with keyword argument namespace='"CELERY"error in the celery file
body: <p>I have a project name called ShippingApp and I followed the steps to set up the celery worker. I am using celery 3.1.26.post2 with python3.7 and when I want to start the Celery Worker I am getting the error below:</p>
  
  <pre><code>E:\ShippingApp&gt;celery -A ShippingApp worker -l info
  Traceback (most recent call last):
    File "c:\program files\python37\lib\runpy.py", line 193, in _run_module_as_main
      "__main__", mod_spec)
    File "c:\program files\python37\lib\runpy.py", line 85, in _run_code
      exec(code, run_globals)
    File "C:\Program Files\Python37\Scripts\celery.exe\__main__.py", line 9, in &lt;module&gt;
    File "c:\program files\python37\lib\site-packages\celery\__main__.py", line 30, in main
      main()
    File "c:\program files\python37\lib\site-packages\celery\bin\celery.py", line 81, in main
      cmd.execute_from_commandline(argv)
    File "c:\program files\python37\lib\site-packages\celery\bin\celery.py", line 793, in execute_from_commandline
      super(CeleryCommand, self).execute_from_commandline(argv)))
    File "c:\program files\python37\lib\site-packages\celery\bin\base.py", line 309, in execute_from_commandline
      argv = self.setup_app_from_commandline(argv)
    File "c:\program files\python37\lib\site-packages\celery\bin\base.py", line 469, in setup_app_from_commandline
      self.app = self.find_app(app)
    File "c:\program files\python37\lib\site-packages\celery\bin\base.py", line 489, in find_app
      return find_app(app, symbol_by_name=self.symbol_by_name)
    File "c:\program files\python37\lib\site-packages\celery\app\utils.py", line 235, in find_app
      sym = symbol_by_name(app, imp=imp)
    File "c:\program files\python37\lib\site-packages\celery\bin\base.py", line 492, in symbol_by_name
      return symbol_by_name(name, imp=imp)
    File "c:\program files\python37\lib\site-packages\kombu\utils\__init__.py", line 96, in symbol_by_name
      module = imp(module_name, package=package, **kwargs)
    File "c:\program files\python37\lib\site-packages\celery\utils\imports.py", line 101, in import_from_cwd
      return imp(module, package=package)
    File "c:\program files\python37\lib\importlib\__init__.py", line 127, in import_module
      return _bootstrap._gcd_import(name[level:], package, level)
    File "&lt;frozen importlib._bootstrap&gt;", line 1006, in _gcd_import
    File "&lt;frozen importlib._bootstrap&gt;", line 983, in _find_and_load
    File "&lt;frozen importlib._bootstrap&gt;", line 967, in _find_and_load_unlocked
    File "&lt;frozen importlib._bootstrap&gt;", line 677, in _load_unlocked
    File "&lt;frozen importlib._bootstrap_external&gt;", line 728, in exec_module
    File "&lt;frozen importlib._bootstrap&gt;", line 219, in _call_with_frames_removed
    File "E:\ShippingApp\ShippingApp\__init__.py", line 2, in &lt;module&gt;
      from .celery import app as celery_app
    File "E:\ShippingApp\ShippingApp\celery.py", line 6, in &lt;module&gt;
      app.config_from_object('django.conf:settings', namespace='CELERY')
  TypeError: config_from_object() got an unexpected keyword argument 'namespace'
  </code></pre>
  
  <p>celery.py:</p>
  
  <pre><code>import os
  from celery import Celery
  
  os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'mysite.settings')
  
  app = Celery('mysite')
  app.config_from_object('django.conf:settings', namespace='CELERY')
  app.autodiscover_tasks()
  </code></pre>
  
  <p><strong>init</strong>.py:</p>
  
  <pre><code>from .celery import app as celery_app
  </code></pre>
  
  <p>tasks.py:</p>
  
  <pre><code>from celery import task
  from django.core.mail import send_mail
  from .models import Order
  @task
  def order_created(order_id):
      """
      Task to send an e-mail notification when an order is
      successfully created.
      """
      order = Order.objects.get(id=order_id)
      subject = 'Order nr. {}'.format(order.id)
      message = 'Dear {},\n\nYou have successfully placed an order.\
      Your order id is {}.'.format(order.first_name,
      order.id)
      mail_sent = send_mail(subject,
                          message,
                          'admin@myshop.com',
      [order.email])
      return mail_sent
  </code></pre>
  
  <p>In the orders view, we have the code below:</p>
  
  <pre><code>def order_create(request):
  cart = Cart(request)
  if request.method == 'POST':
      form = OrderCreateForm(request.POST)
      if form.is_valid():
          order = form.save()
          for item in cart:
              OrderItem.objects.create(order=order,
                                      product=item['product'],
                                      price=item['price'],
                                      quantity=item['quantity'])
          # clear the cart
          cart.clear()
          # launch asynchronous task
          order_created.delay(order.id)
          # set the order in the session
          request.session['order_id'] = order.id
          # redirect for payment
          return redirect(reverse('payment:process'))
  else:
      form = OrderCreateForm()
  return render(request,
              'orders/order/create.html',
              {'cart': cart, 'form': form})
  </code></pre>
  
  <p>Before I was using celery 4.2.1 but it was not compatible with windows 10 and I uninstall it and install the version 3.1.26.post2.
  Please assist.</p>