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mkstatistics.py
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mkstatistics.py
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#!/usr/bin/env python3
import json
from collections import defaultdict
from argparse import ArgumentParser
"""
Generate statistics for receivers.json
Equivalent:
cat receivers.json | jq ".receivers | group_by(.country) | map({(.[0].country): [.[].callsign]})"
"""
def print_stats(all_receivers):
receivers_by_country = defaultdict(list)
for receiver in all_receivers:
receivers_by_country[receiver["country"]].append(receiver)
for country, receivers in receivers_by_country.items():
print('Found {} receivers in {}'.format(len(receiver), country))
for receiver in receivers:
print(' - {}'.format(receiver["callsign"]))
print('Found {} receivers in {} countries.'.format(len(all_receivers), len(receivers_by_country)))
if __name__ == "__main__":
PARSER = ArgumentParser(description="""Generate statistics of a given receiver-wiki.json.""")
PARSER.add_argument("--in",
metavar="IN_FILE", dest="in_file",
default="receivers.json",
help="Input file. Default: 'receiver-wiki.json'")
ARGS = PARSER.parse_args()
with open(ARGS.in_file) as f:
receiverdb = json.load(f)
if receiverdb['version'][:3] == "0.2":
receivers = receiverdb['receivers']
print_stats(receivers)
else:
print("Unsupported receiverlist version ({}).".format(receiverdb['version']))