TypeError: 'NoneType' object is not subscriptable when creating RESTful API backend
TypeError: 'NoneType' object is not subscriptable when creating RESTful API backend
我正在尝试测试我的 Restful 后端。当我 运行 代码时,出现以下错误: q = json_data['q']
类型错误:'NoneType' 对象不可订阅
Api.py
from flask import Flask, request
from flask_restful import Resource, Api
from flask_cors import CORS
from job_board_controller import JobBoardController
app = Flask(__name__)
api = Api(app)
CORS(app)
class JobApi(Resource):
def get(self):
json_data = request.get_json()
print(request.args)
q = json_data['q']
l = json_data['l']
ip = json_data['ip']
print(json_data)
jobs = JobBoardController()
jobs_reports = jobs.getJobListings(q, l, ip)
return {'reports': jobs_reports}
api.add_resource(JobApi, '/job_board_api')
if __name__ == '__main__':
app.run(debug=False)
乍一看,返回的请求不包含响应。
发生 NoneType
错误是因为您试图访问一个变量的索引 q
,该变量不是对象,而是一个空变量。
如果我在代码中定义:
>>> a = None
>>> a['q']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'NoneType' object is not subscriptable
如您所见,我遇到了同样的错误。
我正在尝试测试我的 Restful 后端。当我 运行 代码时,出现以下错误: q = json_data['q'] 类型错误:'NoneType' 对象不可订阅
Api.py
from flask import Flask, request
from flask_restful import Resource, Api
from flask_cors import CORS
from job_board_controller import JobBoardController
app = Flask(__name__)
api = Api(app)
CORS(app)
class JobApi(Resource):
def get(self):
json_data = request.get_json()
print(request.args)
q = json_data['q']
l = json_data['l']
ip = json_data['ip']
print(json_data)
jobs = JobBoardController()
jobs_reports = jobs.getJobListings(q, l, ip)
return {'reports': jobs_reports}
api.add_resource(JobApi, '/job_board_api')
if __name__ == '__main__':
app.run(debug=False)
乍一看,返回的请求不包含响应。
发生 NoneType
错误是因为您试图访问一个变量的索引 q
,该变量不是对象,而是一个空变量。
如果我在代码中定义:
>>> a = None
>>> a['q']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'NoneType' object is not subscriptable
如您所见,我遇到了同样的错误。