python - return to base class -

i have code in base module:

  class start_game(object):         def __init__(self):             print "you landed on planet , see 3 rooms."             print "you need choose 1 room enter"             self.door=raw_input("pick number of door (1,2 or 3)>>>")             try:                 assert(int(self.door)>0 , int(self.door)<=3)                 self.password=('%d%d%d')%(randint(1,9),randint(1,9),randint(1,9))                 print self.password                 self.rooms={'1':medical_room,'2':library,'3':basement,'4':end}                 while true: #                break                    room=self.rooms[self.door] #                print room()                    if self.door=='1':                       self.door=room().play(self.password)                    else:                       self.door=room().play() 

this way want run basement module entering 3 number. basement module is:

from end import *  class basement(object):      def __init__(self):         print"you enterd dark room , makes noise"      def play(self):         choice=raw_input("do want continue?y/n")         if choice=='y':             end().play()         else:             start_game()??? 

my question how can return start_game class , start game fron beggining?

i may misunderstanding, perhaps need add following base module:

if __name__ == '__main__':     start_game() 

and run base module python: python my_module.py

the if __name__ == '__main__': true when running module. when true creates game.

although, others have said, way using classes unusual.