angular can't parse JSON [duplicate] - angularjs

Question

I have a string in the following strings
json_string = '{u"favorited": false, u"contributors": null}'
json_string1 = '{"favorited": false, "contributors": null}'
The following json load works fine.
json.loads(json_string1 )
But, the following json load give me value error, how to fix this?
json.loads(json_string)
ValueError: Expecting property name: line 1 column 2 (char 1)

Answer 1

I faced the same problem with strings I received from a customer. The strings arrived with u's. I found a workaround using the ast package:
import ast
import json
my_str='{u"favorited": false, u"contributors": null}'
my_str=my_str.replace('"',"'")
my_str=my_str.replace(': false',': False')
my_str=my_str.replace(': null',': None')
my_str = ast.literal_eval(my_str)
my_dumps=json.dumps(my_str)
my_json=json.loads(my_dumps)
Note the replacement of "false" and "null" by "False" and "None", since the literal_eval only recognizes specific types of Python literal structures. This means that if you may need more replacements in your code - depending on the strings you receive.

Answer 2

You could remove the u suffix from the string using REGEX and then load the JSON
s = '{u"favorited": false, u"contributors": null}'
json_string = re.sub('(\W)\s*u"',r'\1"', s)
json.loads(json_string )

Answer 3

Use json.dumps to convert a Python dictionary to a string, not str. Then you can expect json.loads to work:
Incorrect:
>>> D = {u"favorited": False, u"contributors": None}
>>> s = str(D)
>>> s
"{u'favorited': False, u'contributors': None}"
>>> json.loads(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "D:\dev\Python27\lib\json\__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "D:\dev\Python27\lib\json\decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "D:\dev\Python27\lib\json\decoder.py", line 380, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting property name: line 1 column 2 (char 1)
Correct:
>>> D = {u"favorited": False, u"contributors": None}
>>> s = json.dumps(D)
>>> s
'{"favorited": false, "contributors": null}'
>>> json.loads(s)
{u'favorited': False, u'contributors': None}