operator

AbstractOperator	This is the base class for operators.
PopulationOperator	This is a base class a population operator.
PopulationOperatorAdapter	This is an adapter to make an operator aim at population.
ProblemBasedOperator	This is a base class a operator based on population, that is, it requires a problem instance.
build_population_operator	Builder function for population operator.
operator_checker	checker for operator.
pop_operator_checker	checker for population operator.