Voting script and sample ballot file used for [Open Data Day Arusha 2017](https://www.reubano.xyz/blog/arusha-s-first-open-data-day/)

count_votes

#!/usr/bin/env python2
#

import csv, sys

from io import open
from collections import defaultdict
from pyvotecore.schulze_stv import SchulzeSTV

notation = SchulzeSTV.BALLOT_NOTATION_RANKING
_ballots = defaultdict(int)
args = sys.argv[1:]
path = args[0]
num = int(args[1] if len(args) > 1 else 3)

with open(path) as f:
    for ballot in csv.DictReader(f):
        key = tuple(sorted(tuple([k, v]) for k, v in ballot.items() if v))
        _ballots[key] += 1

    ballots = [{'count': v, 'ballot': dict(k)} for k, v in _ballots.items()]
    result = SchulzeSTV(ballots, required_winners=num, ballot_notation=notation)

for winner in result.winners:
    print winner

example_ballot.csv

usage.md

install the requirements (requires Python 2)

pip install python-vote-full

make the script executable

chmod 0755 count_votes

Tally the ballots and show (by default) the top 3 choices

./count_votes example_ballot.csv
SPEARS
GREY
AMES

Tally the ballots and show the top 2 choices

./count_votes example_ballot.csv 2
GREY
AMES