关于python：如何在django计算两个日期之间的天数


How To Calculate days Between Two Dates In Django

我想计算两个在姜哥的日期的时差。我正在尝试此代码：

我的模型：

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dateDeDebut = models.DateTimeField(auto_now_add=False, auto_now=False)
dateDeFin = models.DateTimeField(auto_now_add=False, auto_now=False)

我的类视图集：

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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)

我得到这个错误：

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unsupported operand type(s) for -: 'unicode' and 'unicode'
相关讨论

这个解决方案对我有效

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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)