笨方法学python 习题35修改

现在学习python不知道如何保持热情，对于新手的，也没有什么好的练习项目，大家有什么的好的练习题可以推荐。谢谢了哈

#coding=utf-8

# 相对35题增加了back函数，有个确认进入房间的选项,输入都选项化了，只需要输入数字即可

def back(enter_room):
    print """you will enter the %r room, are you sure ?
Options
 1、enter the room
 2、go back
""" % enter_room
    while True:
        opt_sel = raw_input("> ")
        if opt_sel.isdigit():
            yes_or_no = int(opt_sel)
        else:
            print "please enter the number 1 or 2. "
            continue
        if int(yes_or_no) == 1:
            return True
        elif int(yes_or_no) == 2:
            return False
        else:
            print "please enter the number 1 or to. "


def dead(why):
    print why,"Good job!"
    exit(0)

def gold_room():

    next = raw_input("This room is full of gold. How much do you take?\n>")
    if next.isdigit():
        how_much = int(next)
    else:
        dead("Man, learn to type a number.")

    if how_much < 50:
        print "Nice, you are not greedy,you win!"
        exit(0)
    else:
        dead("You greedy bastard")

def bear_room():
    print """There is a bear here.
The bear has a bunch of honey.
The fat bear is in front of another door.
How are you going to move the bear?
"""
    bear_moved = False
    while True:
        print """
        1、take honey
        2、taunt bear
        3、open door
"""
        next_a = raw_input("> ")
        if next_a.isdigit():
            next = int(next_a)
        else:
            print "Look above the options and select"
            continue
        if next == 1:
            dead("The bear looks at you then slaps your face off.")
        elif next ==2 and not bear_moved:
            print "The bear has moved from the door. You can go through it now."
            bear_moved = True
        elif next == 2 and bear_moved:
            dead("The bear gets pissed off and chews your leg off.")
        elif next == 3 and bear_moved:
            gold_room()
        else:
            print "I got no idea what that means. "

def cthulhu_room():
    print "Here you see the great evil Cthulhu."
    print "He, it, whatever stares at you and you go insane."
    print "Do you flee for your life or eat your head?"

    next = raw_input("> ")

    if "flee" in next:
        start()
    elif "head" in next:
        dead("Well that was tasty!")
    else:
        cthulhu_room()

def start():
    print """
You are in a dark room.
There is a door to your right and left.
Which one do you take?
"""
    next = raw_input("> ")

    if next == "left":
        if back(next):
            bear_room()
        else:
            start()
    elif next == "right":
        if back(next):
            cthulhu_room()
        else:
            start()
    else:
        dead("You stumble around the room until you starve.")

start()