《Python编程快速上手—让繁琐工作自动化》第10章实践项目答

10.8 实践项目：调试硬币抛掷

项目要求：书中给了一段代码，隐藏了一些bug，用logging调试并找出问题所在

#! python3
import logging
logging.basicConfig(level=logging.INFO, format='%(asctime)s, 
                                    %(levelname)s - %(message)s')
import random

def guess_fun():
    global guess
    while guess not in ('heads', 'tails'):
        print('Guess the coin toss! Enter heads or tails:')
        guess = input()

guess = ''
guess_fun()
toss = random.choice(['heads', 'tails']) # 0 is tails, 1 is heads
logging.info('toss is %s, guess is %s' % (toss, guess))
if toss == guess:
    print('You got it!')
else:
    print('Nope! Guess again!')
    guess = ''
    guess_fun()
    logging.info('toss is %s, guess is %s' % (toss, guess))
    if toss == guess:
        print('You got it!')
    else:
        print('Nope. You are really bad at this game.')

思路：

1. 基本上bug认真读读代码就可以看出来；但作为练习，还是要把logging插入到合适的位置
2. logging作为调试，虽然用起来较麻烦，但是要习惯

环境：python3

想做这个系列文章，就是因为当时看这本书时，想看看网上有没更优美的解决，但是略难找到。所以就把自己的项目练习放在了一个txt文件中，现在把练习代码放到这里，有不足之处希望大家能给出指导意见及相互交流、提升。