我对 python 和 django 比较陌生，
我有以下 rest api View ，
class InvoiceDownloadApiView(RetrieveAPIView):
"""
This API view will retrieve and send Terms and Condition file for download
"""
permission_classes = (IsAuthenticated,)
def get(self, invoice_id, *args, **kwargs):
if self.request.user.is_authenticated():
try:
invoice = InvoiceService(user=self.request.user, organization=self.request.organization).invoice_download(
invoice_id=invoice_id)
except ObjectDoesNotExist as e:
return Response(e.message, status=status.HTTP_404_NOT_FOUND)
if invoice:
response = HttpResponse(
invoice, content_type='application/pdf')
response['Content-Disposition'] = 'inline; filename={0}'.format(
invoice.name.split('/')[-1])
response['X-Sendfile'] = smart_str(invoice)
return response
else:
return Response({"data": "Empty File"}, status=status.HTTP_400_BAD_REQUEST)
使用以下网址，
urlpatterns = [
url(r'^invoice/(?P<invoice_id>[0-9]+)/download/$', views.InvoiceDownloadApiView.as_view()),
]
root url 格式如下，
url(r'^api/payments/', include('payments.rest_api.urls', namespace="payments")),
当我调用端点时，
localhost:8000/api/payments/invoice/2/download/
出现如下错误，
TypeError at /api/payments/invoice/2/download/
get() got multiple values for keyword argument 'invoice_id'
无法弄清楚到底是什么导致了这个错误
最佳答案
View 方法的第一个参数(在 self 之后)始终是 request。按照您定义它的方式，请求作为 invoice_id 方法传入，而实际的 invoice_id 作为附加 kwarg 传入，因此出现错误。
像这样定义你的方法:
def get(self, request, invoice_id, *args, **kwargs):
关于python - django 类型错误 : get() got multiple values for keyword argument 'invoice_id' ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40714495/