python - 如何在Google AppEngine上使Python字典成为持久性

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最佳答案

我想有两个选择。
使用expando。You can store anything in that as long as you omit the reserved fields:

class SomeModel(db.Expando):
    pass

your_model = SomeModel()
for k, v in your_dict.iteritems():
    setattr(your_model, k, v)

也许可以使用your_model.__dict__.update(your_dict)，但我不确定。
Store it in a textfield using pickle:

class SomeModel(db.Model):
    pickled_data = db.BlobProperty()

your_model = SomeModel()
your_model.pickled_data = pickle.dumps(your_dict)