python json json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes

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>>> import json>>> test="{'data':'123'}">>> result=json.loads(test)Traceback (most recent call last):  File "<stdin>", line 1, in <module>  File "d:\Anaconda3\lib\json\__init__.py", line 319, in loads    return _default_decoder.decode(s)  File "d:\Anaconda3\lib\json\decoder.py", line 339, in decode    obj, end = self.raw_decode(s, idx=_w(s, 0).end())  File "d:\Anaconda3\lib\json\decoder.py", line 355, in raw_decode    obj, end = self.scan_once(s, idx)json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)

原因在于：字符串里用单引号来标识字符。

解决办法如下：将字符串里的单引号替换成双引号

>>> import re>>> test=re.sub('\'','\"',test)>>> result=json.loads(test)>>> result['data']'123'

对于带u'的字符串，u也要去掉：

>>> c=f.read()>>> c"{u'meta': {u'code': 200, u'requestId': u'5815f6739fb6b77494061e19'}, u'response': {u'tips': {u'count': 0, u'items': []}}}">>> d=re.sub("u'","\"",c)>>> d'{"meta\': {"code\': 200, "requestId\': "5815f6739fb6b77494061e19\'}, "response\': {"tips\': {"count\': 0, "items\': []}}}'>>> d=re.sub("'","\"",d)>>> d'{"meta": {"code": 200, "requestId": "5815f6739fb6b77494061e19"}, "response": {"tips": {"count": 0, "items": []}}}'>>> json.loads(d){'response': {'tips': {'items': [], 'count': 0}}, 'meta': {'requestId': '5815f6739fb6b77494061e19', 'code': 200}}>>>

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