def generatePlanet(system_intensity, system_id, i): global planet_list planet = Planet() planet.id = system_id + i planet.name = 'PLANET NAME ' + str(system_id + i) planet.orbit = i planet.position = [] planet.size = random.choice(['small', 'medium', 'giant']) planet.setGravity() planet.setRadiation(system_intensity) planet.setAtmosphere() planet.setUsability() planet_list.append(planet)