超大json文件拆分报错

请问怎么解决下面的报错内容?

Traceback (most recent call last):
File "C:\pythonProject2\corpus\chaifen.py", line 26, in
data_list.append(json.loads(line))
File "C:\Python39\lib\json_init_.py", line 346, in loads
return _default_decoder.decode(s)
File "C:\Python39\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Python39\lib\json\decoder.py", line 353, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 2 column 1 (char 2)

截两行数据看看。
可能json 格式不规范, 每个key 都要有引号。