pyschools的Private Test Cases通不过

gleerat

# This is a comment
127.0.0.1     localhost
192.168.2.253     pyschools    # python server

Examples

    >>> gethostname('127.0.0.1')
    'localhost'
    >>> gethostname('192.168.2.253')
    'pyschools'
    >>> gethostname('192.168.2.254')  # Returns 'Unknown host' if ip address is not found.
    'Unknown host'

1. # Write a function that reads the /etc/hosts and return the hostname, given the ip address.
   
2. def gethostname(ip_address):
   
3.     for line in open("/etc/hosts"):
   
4.         line = line.rstrip()
   
5.         if ip_address in line:
   
6.             return line.split(' ')[-1]
   
7.             break
   
8.     else:
   
9.         return "Unknown host"

复制代码

官方给出的解释是

What does it mean when I failed the Private Test Cases?
    Private test cases are hidden test cases created to prevent the users from hardcoding the answers to the visible test cases. If you fail the private test cases, look at the samples for some clues that you may miss. For example, there may be a missing '\n' or ' ' (space) which is not apparent between the Returned and Expected results.

费了老大劲，还是不知道哪里出错。

noword2k

你的程序通用吗？windows下面怎么办？
用python的标准模块吧。

socket.gethostbyaddr

gleerat

回复 2# noword2k


   
pyschools，这是一个使用google app engine的在线环境，只需要编写指定的函数，使用后台特定的测试。