Python错误json.decoder.JSONDecodeError:预期值:第1行第1列(字符0)

时间:2019-04-04 06:36:20

标签: python json

大家好,我有一段代码获取表中的行数,然后请求它们,但是我得到了

  

json.decoder.JSONDecodeError:预期值:第1行第1列(字符   0)

1 个答案:

答案 0 :(得分:1)

好像您正在尝试解析一个空字符串(或从一个空文件中读取)。最小的有效JSON字符串仍必须具有顶级数组或字典,即[]{}是最小的有效JSON字符串。

import json
json.loads("")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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)