Najłatwiej zwykłym filtrem:
#!/usr/bin/env python3
class Car:
def __init__(self, id, model, year_of_prod):
self.id = id
self.model = model
self.year_of_prod = year_of_prod
cars_list = [ Car(1, "Ford Mustand", 1983), Car(2, "Fiat 126P", 1981),
Car(3, "WV Passat", 2001) ]
# Samochody wyprodukowane po 1982
result_cars = filter(lambda c: c.year_of_prod > 1982, cars_list)
for car in result_cars:
print(car.model, car.year_of_prod)