关于python：Flask API TypeError：“Response”类型的对象不是JSON可序列化的

Flask API TypeError: Object of type 'Response' is not JSON serializable

我有Python Flask Restful API的问题，数据转到Elasticsearch，当我用Postman发布新数据时，问题是：

TypeError："Response"类型的对象不是JSON可序列化的

你能帮助我吗？

模型：

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from marshmallow import Schema, fields, validate

class Person(object):
def __init__(self,tcno=None,firstname=None,lastname=None,email=None,birthday=None,country=None,gender=None):
self.__tcno = tcno
self.__firstname = firstname
self.__lastname = lastname
self.__email = email
self.__birthday = birthday
self.__country = country
self.__gender = gender

def __repr__(self):
return '<Person(firstname={self.__firstname!r})>'.format(self=self)

class PersonSchema(Schema):
tcno = fields.Str(required=True,validate=[validate.Length(min=11, max=11)])
firstname = fields.Str(required=True)
lastname = fields.Str(required=True)
email = fields.Email(required=True,validate=validate.Email(error="Not a valid email"))
birthday = fields.Date(required=True)
country = fields.Str()
gender = fields.Str()

视图：

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from flask import Response, json, request, jsonify, Flask
import requests
from flask_marshmallow import Marshmallow
from flask_restful import Api, Resource

from Person import Person, PersonSchema

app = Flask(__name__)
api = Api(app)
ma = Marshmallow(app)

class Apici(Resource):
def __init__(self):
pass

def get(self,people_id):
url ="http://localhost:9200/people/person/{}".format(people_id)
headers = {"Content-type":"application/json"}
r = requests.get(url=url, headers=headers)
json_data = json.loads(r.text)
if json_data['found'] is False:
mesaj = json.dumps({"found":"False"})
resp = Response(mesaj, status=201, mimetype='application/json')
return resp
return json_data["_source"]

def post(self,people_id):
json_input = request.get_json()
person_schema = PersonSchema()
person, errors = person_schema.load(json_input)
if errors:
return jsonify({'errors': errors}), 422
#result = person_schema(person)
url ="http://localhost:9200/people/person/{}".format(people_id)
headers = {"Content-type":"application/json"}
print(url)

r = requests.post(url=url, json=json_input, headers=headers)
print(r)
json_data = json.loads(r.text)
if json_data["result"] is"Updated":
message = json.loads({"result":"updated"})
resp = Response(message, status=201, mimetype='application/json')
return resp
message = json.loads({"result":"created"})
resp = Response(message, status=201, mimetype='application/json')
return resp #jsonify(result.data)

def put(self):
json_input = request.get_json()
person_schema = PersonSchema()
person, errors = person_schema.load(json_input)
if errors:
return jsonify({'errors': errors}), 422
result = person_schema(person)
url ="http://localhost:9200/people/person/{}".format(request.url[-1])
headers = {"Content-type":"application/json"}
r = requests.post(url=url, json=json_input, headers=headers)
json_data = json.loads(r.text)
if json_data["result"] is"Updated":
message = json.dumps({"result":"updated"})
resp = Response(message, status=201, mimetype='application/json')
return resp
message = json.dumps({"result":"created"})
resp = Response(message, status=201, mimetype='application/json')
return resp #jsonify(result.data)

def delete(self):
url ="http://localhost:9200/people/person/{}".format(request.url[-1])
headers = {"Content-type":"application/json"}
r = requests.delete(url=url,headers=headers)
json_data = json.loads(r.text)
if json_data["result"] =="not_found":
message = json.dumps({"result":"not_found"})
return Response(message, status=201, mimetype='application/json')
message = json.dumps({"result":"deleted"})
resp = Response(message, status=201, mimetype='application/json')
return resp

class ApiciList(Resource):
def __init__(self):
pass

def get(self):
url ="http://localhost:9200/people/person/_search"
body = {"query": {"match_all": {}}}
headers = {"Content-type":"application/json"}
r = requests.get(url=url, json=body, headers=headers)
json_data = json.loads(r.text)
return json_data["hits"]["hits"]

api.add_resource(ApiciList, '/person')
api.add_resource(Apici, '/person/<string:people_id>')

if __name__ == '__main__':
app.run(port=5010,debug=True)

错误：

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127.0.0.1 - - [08/Jun/2017 11:37:18]"POST /person/1 HTTP/1.1" 500 -
Traceback (most recent call last):
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1997, in __call__
return self.wsgi_app(environ, start_response)
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1985, in wsgi_app
response = self.handle_exception(e)
File"/usr/local/lib/python3.6/dist-packages/flask_restful/__init__.py", line 271, in error_router
return original_handler(e)
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1540, in handle_exception
reraise(exc_type, exc_value, tb)
File"/usr/local/lib/python3.6/dist-packages/flask/_compat.py", line 32, in reraise
raise value.with_traceback(tb)
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1614, in full_dispatch_request
rv = self.handle_user_exception(e)
File"/usr/local/lib/python3.6/dist-packages/flask_restful/__init__.py", line 271, in error_router
return original_handler(e)
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1517, in handle_user_exception
reraise(exc_type, exc_value, tb)
File"/usr/local/lib/python3.6/dist-packages/flask/_compat.py", line 32, in reraise
raise value.with_traceback(tb)
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1612, in full_dispatch_request
rv = self.dispatch_request()
File"/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1598, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File"/usr/local/lib/python3.6/dist-packages/flask_restful/__init__.py", line 481, in wrapper
return self.make_response(data, code, headers=headers)
File"/usr/local/lib/python3.6/dist-packages/flask_restful/__init__.py", line 510, in make_response
resp = self.representations[mediatype](data, *args, **kwargs)
File"/usr/local/lib/python3.6/dist-packages/flask_restful/representations/json.py", line 20, in output_json
dumped = dumps(data, **settings) +"
"
File"/usr/lib/python3.6/json/__init__.py", line 238, in dumps
**kw).encode(obj)
File"/usr/lib/python3.6/json/encoder.py", line 201, in encode
chunks = list(chunks)
File"/usr/lib/python3.6/json/encoder.py", line 437, in _iterencode
o = _default(o)
File"/usr/lib/python3.6/json/encoder.py", line 180, in default
o.__class__.__name__)
TypeError: Object of type 'Response' is not JSON serializable

编辑：
我发现了问题。它是def post(self，people_id)方法：

1 2	if errors: return jsonify({'errors': errors}), 422

新队：

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if errors:
message = json.dumps({'errors': errors})
return Response(message, status=422, mimetype='application/json')