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

部分源码

报错

Traceback (most recent call last):
  File "C:/Users/22178/Desktop/MaoYan-MovieComments-master/comment.py", line 92, in <module>
    main()   
  File "C:/Users/22178/Desktop/MaoYan-MovieComments-master/comment.py", line 79, in main
    comments = getData(html)
  File "C:/Users/22178/Desktop/MaoYan-MovieComments-master/comment.py", line 27, in getData
    json_data = json.loads(html)['cmts']
  File "F:\AnacondaData\lib\json\__init__.py", line 357, in loads
    return _default_decoder.decode(s)
  File "F:\AnacondaData\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "F:\AnacondaData\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

求帮忙

json.loads()是将将str类型的数据转换为dict类型，你接口返回的应该是json类型吧
返回的json类型用 json.load()