since char is the main instance , i think its more convenient/less confuse to make collection of instances from planet class (not inherited) , then add/append them into char's {} later. did i answer your question? havent been through class with games whatsover so i really dont know if this make any sense. 
was just trying to help fixing that 'typeerror'
was just trying to help fixing that 'typeerror'
swallow osama bin laden