text game for uni | Python Fiddle

import sys
import pprint

world = {
        # these are the rooms in the world
        "rooms":
        {
            "dungeon":
                {
                    "description":"A cold dark room with a wooden hatch and a ladder leading up to it.",
                    "exits": {"up": "guard_room"},
                    "objects":{"carrot":"a fresh orange carrot"},
                },

"guard_room":
                 {
                     "description":"A small stone chamber with a candle burning on an empty desk. The room smells of tallow and straw.",
                     "objects": {"quill":"An old-fashioned quill pen", 
                                "parchment":"An oddly-stained parchment paper."},
                     "exits" : {"down":"dungeon", 
                                "north":"stone_corridor"}
                 },

"stone_corridor":
                 {
                     "description":"A dank, narrow chamber of coarse rock. Thick veins of nitre run down the walls. This way is blocked.",                 
                     "objects" : {"torch":"A charred torch"},
                     "exits" : {"south":"guard_room"}
                 }
        },
        # this defines how the game will start off each time
        "start_room": "dungeon",
        "start_inventory" : {"hood":"A worn hood made of coarse, greyish fabric."},
    
}

inventorydict = {
}

def userinput(): #works
    response = raw_input("\nPlease enter your response ")
    examineinput(response)

def examineinput(response): 
    
    if response == "quit": #works
        print "Thank you for playing!"
        sys.exit()
    if response == "inventory": #works
        if bool(inventorydict) == False:
            print "You are carrying:\nnothing"
        else:
            print "You are carrying: "
            pprint.pprint(inventorydict)

if response.startswith("examine"): #works
        s = response.split()
        
        if s[1] in inventorydict.keys():
            print inventorydict[s[1]]  
        elif s[1] in world["rooms"][currentroom]["objects"]:
            print world["rooms"][currentroom]["objects"][s[1]]
        else:
            print "I don't see a %s here" % s[1]
            
    if response == "look": #works
        print world["rooms"][currentroom]["description"]
        obj = world["rooms"][currentroom]["objects"]
        for i in obj:
            i
        print "There is a %s here." % i 
        
    if response.startswith("take"):
        s = response.split()
        if s[1] in world["rooms"][currentroom]["objects"]:
            a = world["rooms"][currentroom]["objects"]
            inventorydict.update(a)
            print "You take the %s " % s[1]
        else:
            print "I don't see a %s here" % s[1]
    
    if response.startswith("drop"):
        s = response.split()
        if s[1] in inventorydict.keys():
            inventorydict.pop(s[1], None)
            print "You drop the %s " % s[1]

if response == ("help"):
        print "List of commands: examine [object], look, take [object], drop [object], inventory"
    userinput()

def addinventory(k,v):
    inventorydict[k] = v
    
    
def startinventory(): #gets starting inventory from worlds dict
    start_inv = world["start_inventory"]    
    for key, value in start_inv.iteritems():
       addinventory(key,value)

def startgame():    
    start_room = world["start_room"] #gets the start room
    global currentroom
    currentroom = start_room
    start_room_desc = world["rooms"][start_room]["description"] #gets start room description
    start_obj = world["rooms"][start_room]["objects"]
    for i in start_obj:
        i
    
    print start_room_desc
    print "There is a %s here." % i

startgame()
startinventory()
userinput()

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