old_contents: from django.core.urlresolvers import reverse
  from django.utils.translation import ugettext_lazy as _
  from getpaid.backends import PaymentProcessorBase
  
  class PaymentProcessor(PaymentProcessorBase):
      BACKEND = 'getpaid.backends.paymill'
      BACKEND_NAME = _('Paymill')
      BACKEND_ACCEPTED_CURRENCY = ('EUR', 'CZK', 'DKK', 'HUF', 'ISK', 'ILS', 'LVL',
          'CHF', 'NOK', 'PLN', 'SEK', 'TRY', 'GBP', )
  
      def get_gateway_url(self, request):
          return reverse('getpaid-paymill-authorization', kwargs={'pk' : self.payment.pk}), "GET", {}
new_contents: from django.core.urlresolvers import reverse
  from django.utils.translation import ugettext_lazy as _
  from getpaid.backends import PaymentProcessorBase
  
  class PaymentProcessor(PaymentProcessorBase):
      BACKEND = 'getpaid.backends.paymill'
      BACKEND_NAME = _('Paymill')
      BACKEND_ACCEPTED_CURRENCY = ('EUR', 'CZK', 'DKK', 'HUF', 'ISK', 'ILS', 'LVL',
          'CHF', 'NOK', 'PLN', 'SEK', 'TRY', 'GBP', 'USD', )
  
      def get_gateway_url(self, request):
          return reverse('getpaid-paymill-authorization', kwargs={'pk' : self.payment.pk}), "GET", {}
  
subject: Add USD to supported currencies in Paymill backend