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#!/usr/bin/env python
# -*- coding: utf-8 -*-
""" Read NavigaTor measurement data. """
# Author: Robert Annessi <>
# License: GPLv2 (2015)
from json import loads
from argparse import ArgumentParser
from os.path import exists
import sys
# Argument handling
parser = ArgumentParser(description="Parse JSON data from NavigaTor.")
parser.add_argument("--input", type=str, required=True, help="Input CSV file.")
args = parser.parse_args()
if not exists(args.input):
sys.stderr.write("ERROR: Input file '%s' does not exist!\n" % args.input)
with open(args.input, 'r') as f:
while True:
# here is the magic. interpret every line as JSON string
sys.stdout.write("%s\n" % loads(f.readline()))
except ValueError: