I tried modifying the program as follows as per your suggestion.Doesn't seem to
work.
import simplejson as json
import cjson
json_input = { "msgType": "0",
"tid": "1",
"data": "[{\"Severity\":\"warn\",\"Subject\":\"Reporting
\",\"Message\":\"tdetails:{\\\"Product\\\":\\\"Gecko\\\",\\\"CPUs\\\":8,\\\"Language\\\":\\\"en-GB\\\",\\\"isEvent\\\":\\\">
"Timestamp": "1432703193431",
"Host": "myserver.com",
"Agent": "Experience",
"AppName": "undefined",
"AppInstance": "my_server",
"Group": "UndefinedGroup"
}
print('json input original {} \n\n'.format(json_input))
data = json_input['data']
print('data {} \n\n'.format(data))
message = json.loads(data)
print('message {} \n\n'.format(message['Message']))
I get the following error.
Traceback (most recent call last):
File "test_json.py", line 23, in <module>
print('message {} \n\n'.format(message['Message']))
TypeError: list indices must be integers, not str
karthik.sharma@aukksharma2:~$ vim test_json.py
On Thursday, 28 May 2015 11:14:44 UTC+12, Cameron Simpson wrote:
> On 27May2015 15:23, Karthik Sharma <karthik.sha...@gmail.com> wrote:
> >I have the JSON structure shown below and the python code shown below to
> >manipulate the JSON structure.
> >
> > import json
> >
> > json_input = {
> > "msgType": "0",
> > "tid": "1",
> > "data": "[{\"Severity\":\"warn\",\"Subject\":\"Reporting
> > \",\"Message\":\"tdetails:{\\\"Product\\\":\\\"Gecko\\\",\\\"CPUs\\\":8,\\\"Language\\\":\\\"en-GB\\\",\\\"isEvent\\\":\\\">
> > "Timestamp": "1432703193431",
> > "Host": "myserver.com",
> > "Agent": "Experience",
> > "AppName": "undefined",
> > "AppInstance": "my_server",
> > "Group": "UndefinedGroup"
> > }
> >
> >
> > data = json_input['data']
> > tdetails = data['Message']
> > print('json_input {} \n\ndata {} \n\n tdetails
> > {}\n\n'.format(json_input,data,tdetails))
> >
> >I am getting the error.
> >
> > Traceback (most recent call last):
> > File "test_json.py", line 19, in <module>
> > tdetails = data['Message']
> > TypeError: string indices must be integers, not str
>
> That will be because of this line:
>
> tdetails = data['Message']
>
> because "data" is just the string from your dict.
>
> >The JSON structure is valid as shown by http://jsonlint.com/
> > I want to be able to access the different fields inside `data` such as
> > `severity`, `subject` and also fields inside `tdetails` such as `CPUs` and
> > `Product`. How do I do this?
>
> Then you need to decode "data". Example (untested):
>
> data_decoded = json.loads(data)
>
> and then access:
>
> data_decoded['Message']
>
> Cheers,
> Cameron Simpson <c...@zip.com.au>
>
> Here's a great .sig I wrote, so good it doesn't rhyme.
> Jon Benger <jben...@agravaine.st.nepean.uws.edu.au>
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