python - How To Calculate days Between Two Dates In Django -


i want calculate days difference between 2 dates in django. trying code:

my model :

datededebut = models.datetimefield(auto_now_add=false, auto_now=false) datedefin = models.datetimefield(auto_now_add=false, auto_now=false)

my classviewset :

class myclassviewset(viewsets.modelviewset):     serializer_class = myclassserializer     permission_classes = (isauthenticated, )      def perform_create(self, serializer):         if (condition):             diff = (self.request.data.get('datedefin') - self.request.data.get('datededebut')).days #never executed         print(diff)

and error :

unsupported operand type(s) -: 'unicode' , 'unicode'

this solution works me 

class myclassviewset(viewsets.modelviewset):     serializer_class = myclassserializer     permission_classes = (isauthenticated, )      def perform_create(self, serializer):         if (condition):             start_date = datetime.datetime.strptime(self.request.data.get('datedefin'), "%y-%m-%d %h:%m")             end_date = datetime.datetime.strptime(self.request.data.get('datededebut'), "%y-%m-%d %h:%m")             diff = abs((end_date-start_date).days)         print(diff)

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