missing_data

#!/usr/bin/python

import json

from util import read_existing_data

LIMIT = 20

def count_missing(data):
    missing_count = {}
    for location in data:
        missing_count[location] = json.dumps(data[location]).count("-9999")
    return missing_count

def main():
    data = read_existing_data()
    missing = count_missing(data)

    i = 0
    for location in dict(sorted(missing.items(), key=lambda item: item[1], reverse=True)):
        print(location + ": " + str(missing[location]))
        i += 1
        if i >= LIMIT:
            break

if __name__ == "__main__":
    main()