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I have a problem with this json file : Zips.json! .

I Didnt find a way to count the number of postal codes in each state. I tried many ways such as this :

file=open("C:\Users\Alex\Downloads/zips.json","r")
lines=json.loads(file.readline())
number=0
states=lines["state"]
for line in file:
    lines=json.loads(line)
    if lines ["state"]==states:
        number=number+1
    else:
        print u"states:",states, u"Number of codes: ",number
        states=lines["state"]
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  • Thank for the reply, i add number=0 under my else but still not working. Commented Feb 10, 2016 at 8:47

1 Answer 1

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The easiest way to do this is to use a collections.Counter:

import json
from collections import Counter
from operator import itemgetter

counter = None
state_getter = itemgetter('state')

with open('zips.json') as fh:
    zips_data = (json.loads(line) for line in fh)
    states_names = map(itemgetter('state'), zips_data)
    counter = Counter(states_names)

print(counter)
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