这是我第一次在web服务器上工作，我正在使用flask编写restful get request，将参数传递给我构建的预测模型。
from flask import Flask, Response
app = Flask(__name__)
api = Api(app)
class AST(Resource):
def get(self):
args = request.args
x1 = args['key1']
x2 = args['key2']
X = [[x1, x2]]
x = load_scaler.transform(X)
y_predict = load_model.predict(x)
y_predict = load_model.predict(np.array(x)).tolist
time = [{'predection':y_predict}]
return Response (json.dumps(time), mimetype='application/json')
api.add_resource(AST, '/start_time')
if __name__ == '__main__':
app.run当我运行代码时，它给了我错误：
TypeError：builtin_function_or_method类型的对象不可JSON序列化
追踪显示
File "/Users/123/Documents/123/webserver/predictionast.py", line 60, in get
return Response (json.dumps(time), mimetype='application/json')
File "/Users/123/opt/anaconda3/lib/python3.7/json/__init__.py", line 231, in dumps
return _default_encoder.encode(obj)
File "/Users/123/opt/anaconda3/lib/python3.7/json/encoder.py", line 199, in encode
chunks = self.iterencode(o, _one_shot=True)
File "/Users/123/opt/anaconda3/lib/python3.7/json/encoder.py", line 257, in iterencode
return _iterencode(o, 0)
File "/Users/123/opt/anaconda3/lib/python3.7/json/encoder.py", line 179, in default
raise TypeError(f'Object of type {o.__class__.__name__} '
TypeError: Object of type builtin_function_or_method is not JSON serializabley_predict是数组
1条答案
按热度按时间b91juud31#
当你试图将python内置的方法或属性传递给json.loads或dumps方法时，会出现“object of built in types are not JSON serializable”的错误。它无法序列化python方法的内部类型。例如：
json_1对象在序列化时尝试打印时会失败，因为它使用了python中的内部bulit方法。另一方面，json_2将被序列化并打印，因为它使用了众所周知的数据类型JSON - String。