def checkMinRequirements(self):
"Only attempt to count votes if there are enough candidates and voters."
OrderDependentSTV.checkMinRequirements(self)
if self.b.numBallots < self.batchCutoff * self.numSeats:
raise RuntimeError, """\
Not enough ballots to run an election.
Need at least %d ballots but have only %d.""" % (
self.batchCutoff*self.numSeats, self.b.numBallots)
