import  requests
url='https://kyfw.12306.cn/otn/leftTicket/queryO?leftTicketDTO.train_date=2020-02-12&leftTicketDTO.from_station=WXH&leftTicketDTO.to_station=SZH&purpose_codes=ADULT'
response = requests.get(url)
result = response.json()
result = result['data']['result']
print(result)

报错信息为

Traceback (most recent call last):

  File "D:/BiYeSheJi_Project/query_request.py", line 57, in <module>

    query(2020-2-23, 'BJP', 'TJP')

  File "D:/BiYeSheJi_Project/query_request.py", line 29, in query

    result = response.json()

  File "H:\Microsoft Visual Studio\Shared\Python36_64\lib\site-packages\requests\models.py", line 897, in json

    return complexjson.loads(self.text, **kwargs)

  File "H:\Microsoft Visual Studio\Shared\Python36_64\lib\json\__init__.py", line 354, in loads

    return _default_decoder.decode(s)

  File "H:\Microsoft Visual Studio\Shared\Python36_64\lib\json\decoder.py", line 339, in decode

    obj, end = self.raw_decode(s, idx=_w(s, 0).end())

  File "H:\Microsoft Visual Studio\Shared\Python36_64\lib\json\decoder.py", line 357, in raw_decode

    raise JSONDecodeError("Expecting value", s, err.value) from None

json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)