python script is not running

[Avnesh Shakya]

hi,
    i want to run python script which generating data into json fromat, I am 
using crontab, but it's not executing...
my python code--
try.py --

import json
import simplejson as json
import sys

def tryJson():
    saved = sys.stdout
    correctFile = file('data.json', 'a+')
    sys.stdout = correctFile
    result = []
    i = 1
    for i in range(5):
        info = {
                'a': i+1,
                'b': i+2,
                'c': i+3,
               }
        result.append(info)

    if result:
        print json.dumps(result, indent=6)
        sys.stdout = saved
        correctFile.close()
tryJson()

now i m doing ion terminal-
avin@hp:~$ crontab -e
then type -
*/2 * * * * python /home/avin/data/try.py

and save

but it's not executing.
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