A pure Python module for election quotas, voting measures, and apportionment methods.
voting package works in Python 2.7, 3.5, 3.6 and 3.7. It is available on
pypi and can be installed using pip.
pip install voting
Apportioning seats using the Huntington-Hill method.
from voting import apportionment votes = [2560, 3315, 995, 5012] seats = 20 assignments = apportionment.huntington_hill(votes, seats)
Calculating the effective number of parties using Golosov's measure.
from voting import diversity parties = [750, 150, 50, 50] effective_parties = diversity.golosov(parties)
Measuring the disproportionality of democratic representation using the Sainte-Lague measure.
from voting import proportion votes = [750, 150, 50, 50] seats = [80, 16, 2, 2] disproportionality = proportion.sainte_lague(votes, seats)
Determining the Droop quota
from voting import quota votes = 1000 seats = 20 election_quota = quota.droop(votes, seats)