how to list elements line by line?

[magni2k]

Hi,
I have a problem. How can I list all the elements in my serverlist.txt 
seperate. That means line by line! So that I can call for example: List only 
the Hostnames! And on the other hand that I can call for example: List only 
the 1st Hostname, then the 2nd and so on! (If its possible with the sys.argv 
argument!)
Anybody an idea how to handle it? Is it necessary to create a new class or 
does it with methods? I would be very appreciate for any help or hints.
I have listed the source code and the .txt file. Thanks. 

magni 


filelist.py 

import sys, urlparse 

class ListFile: 

   def __init__(self, filename):
       self.__file = open(filename, 'r')

   def __getitem__(self):
       line = self.__file.readlines()
       if line:
           return line
       else:
           raise IndexError 

   def __getattr__(self, name):
       return getattr(self.__file, name) 

   def PrintLine(self):
       for line in self.__file:
           print line,
       return line

class URL: 

   def __init__(self, url):
       self.__url = self.SetURL(url) 

   def Analyze(self):
       parse = urlparse.urlparse(self.__url)
       self.__protocol = parse[0]
       self.__hostname = parse[1]
       self.__path = parse[2] 

   def GetProtocol(self):
       return self.__protocol

   def GetHostname(self):
       return self.__hostname

   def GetPath(self):
       return self.__path 

   def GetAll(self):
       return self.__url 

   def SetProtocol(self, protocol):
       self.__protocol = protocol
       return self.__protocol 

   def SetHostname(self, hostname):
       self.__hostname = hostname
       return self.__hostname 

   def SetPath(self, path):
       self.__path = path
       return self.__path

   def SetURL(self, url):
       self.__seturl = url
       return self.__seturl 

if __name__ == '__main__':
   #u = URL('http://www.python.de/test')
   #u.Analyze()
   #print u.GetProtocol()
   #print u.GetHostname()
   #print u.SetPath('/index.html')
   #print u.SetProtocol('ftp')
   #file = ListFile(sys.argv[1])
   #file.PrintLine()
   for line in ListFile(sys.argv[1]):
       u = URL(line)
       u.Analyze()
       print u.GetHostname() 


serverlist.txt   contains for e.g.:
http://www.python.org/index.html
ftp://starship.python.org/python/distr
http://www.python.de/start.html 

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