def _stepsPerGeneration(self):    
     if self.tournamentSize == None:
         return 2 * self.populationSize** 2
     else:
         return Coevolution._stepsPerGeneration(self)
 def _stepsPerGeneration(self):
     if self.tournamentSize == None:
         return 2 * self.populationSize**2
     else:
         return Coevolution._stepsPerGeneration(self)