How to iterate a json string using dictionary

[arnie]

I am getting a json string from an iphone application that is
consuming a google app engine application.
Can anybody let me know how to iterate over a json string using a
dictionary so that I can extract individual fields of the string
Thanks
Arnieterm

[Pranav Prakash]

You need to use a JSON library for Python. Here is a good one that i
have found, and using for quite sometime.

http://code.google.com/p/google-app-engine-samples/source/browse/trunk/geochat/json.py

Also, refer to the Application's source code to understand how to use
this
http://code.google.com/p/google-app-engine-samples/source/browse/trunk/geochat/

Cheers,
--
Pranav Prakash

"This life is more than ordinary"

[arnie]

I am getting a very simple json string that contains only 14 elements
Can't we use python dictionary to extract the elements of json?
Thanks
Arnie

[风笑雪]

json = '{element1: "haha", element2: 123}'

d = eval(json)

print d['element1'], d.['element2']

2009/5/6 arnie <parv...@rediffmail.com>

[djidjadji]

eval() the strings you receive in the request?
One way of getting to execute any python code in his application.

You can use the simple JSON that comes with GAE in Django

from django.utils import simplejson


2009/5/6 风笑雪 <kea...@gmail.com>:

[ray]

Arnie,
I'm assuming you want to iterate over the json in Python?

Once you get the json string converted to a Python dictionary using
simplejson, you can use the dictionary's iteritems() method to iterate
over it in a python forloop like so:


from django.utils import simplejson

#jsonStr is your json string in Python
#convert to dict using simplejson:

jsonAsDict = simplejson.loads( jsonStr )
#jsonAsDict is now a python dict object

for i in jsonAsDict.iteritems():
i[0] #is the key
i[1] #is the value

Hope that helps.

[Brandon]

I would also do it in this manner.