creak | Poison , reset , spoof , redirect MITM script | Hacking library

#Asks player for their name and whether they wish to enter or not
character_name = input(" Welcome to The Tenabris Manor, what is your 
name?:")
print("")
print(" The towering gates stand before you to the large Manor, do you 
enter?")
print("")
inp = ""
while inp != "enter" and inp != "leave":
inp = input(" enter enter or leave: ")
if inp != "enter" and inp != "leave":
    print(" You must type enter or leave")

if inp == "enter":
print(" You push with all your might on the large gates, it swings open with 
a loud clunk.")
if inp == "leave":
print("")
print(" You turn around and go back, probably for the best.")
print("")
print(" Your character", character_name, "turned back and never returned.")
input(" Press enter to exit")
SystemExit("")

def choose_room():
#key = False is so the person does not have the key until going upstairs
global key
key = False
while True: 
    print("")
    print(" Bookshelfs line the walls, a staircase is to the left and a door 
is straight ahead.")
    print("")
    print(" Type 'a' to: Go up the stairs")
    print(" Type 'b' to: To go through the door")
    print(" Type 'c' to: To check the bookshelfs")
    ans = input("")
    if ans=='a':
        print(" You walk up the creaking stairs")
        print(" At the top of the spiral staircase is a small observatory.")
        print(" Looking around on some of stacks of books littering the room  
you")
        print(" find a small key!")
        key = True
        continue
    elif ans=='b':
#The door detects whether the key is True or not/they have the key or not.
         if key == True:
             print(" You open the door with the small key.")
         elif key == False:
             print(" The door is locked, you will need a key to go through 
it.")
             continue
             return
             choose_room()
         else:
             print("The door is locked, you will need a key to go through 
it.")
             continue
             return
             choose_room()

    else:
        ans == 'c'
        print(" You look through the thousands of books.")
        print(" None of them interest you.")
        continue
        return
    choose_room()