IndexError：列出索引超出范围python json

Question

When i excecute this code, for a json file

data = []

with open('subscriberaa') as f:
     for line in f:
        data = json.loads(line)

print str(data["services_key"][0]["code_key"])

I've this error:

IndexError: list index out of range

This is for a null list into a parse string ([])

"services_key" : []

How i can try and catch this error?

Answer 1

in python the term is try and except but i know what you mean

here's what you can do

data = []

with open('subscriberaa') as f:
     for line in f:
        data = json.loads(line)
try:
   print str(data["services_key"][0]["code_key"])
except:
   //code that runs when error happens

hope this helps!

Answer 2

you can use time interval ...

import time
data = []

with open('subscriberaa') as f:
     for line in f:
        data = json.loads(line)
        time.sleep(2)

print str(data["services_key"][0]["code_key"])