What is the difrence between:
s1 = '["a"]'
s2 = "['a']"
When I do json.loads, I get following error for s2 but s1 is fine:
>>> s1='["a2"]'
>>> s2="['a2']"
>>> json.loads(s1)
[u'a2']
>>> json.loads(s2)
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded
The problem is JSON uses double quotes (") for quoting values, not single ones (').
Which means the exception is thrown because of invalid JSON:
['a']["a"]Also the correct example is below, different than yours:
>>> import json
>>> s1 = "['a']"
>>> s2 = '["a"]'
>>> json.loads(s1)
... some traceback removed ...
ValueError: No JSON object could be decoded
>>> json.loads(s2)
[u'a']
EDIT: I have updated the question with the correct output OP must have seen instead of what he/she posted (json.loads('["a2"]') was not throwing errors, json.loads("['a2']") was).
json quotes are not interchangable like Python's are.
>>> import json
>>> print json.dumps("['a']")
"['a']"
>>> print json.dumps('["a"]')
"[\"a\"]"
In the second case the " need to be escaped
json, but does the method require specific input string format?NameError, because you defines1twice, but you define nos2. Please correct your code so it shows exactly what you saw.