本文实例讲述了Python多线程下载文件的方法。分享给大家供大家参考。具体实现方法如下：

import httplib
import urllib2
import time
from threading import Thread
from Queue import Queue
from time import sleep
proxy = \'your proxy\';
opener = urllib2.build_opener( urllib2.ProxyHandler({\'http\':proxy}) )
urllib2.install_opener( opener )
ids = {};
for i in range(1,110):
 try:
  listUrl = \"http://www.someweb.net/sort/list_8_%d.shtml\" % (i);
  print listUrl;
  page = urllib2.urlopen(listUrl).read();
  speUrl = \"http://www.someweb.net/soft/\";
  speUrlLen = len(speUrl);
  idx = page.find(speUrl,0);
  while idx!=-1:
   dotIdx = page.find(\".\",idx + speUrlLen);
   if dotIdx != -1:
    id = page[idx + speUrlLen:dotIdx];
    ids[id] = 1;
   idx = page.find(\"http://www.someweb.net/soft/\",idx + speUrlLen);
 except:
  pass;
q = Queue()
NUM = 5
failedId = [];
def do_somthing_using(id):
 try:
  url = \"http://www.someweb.net/download.php?softid=%s&type=dx\" % (id);
  h2 = httplib.HTTPConnection(\"your proxy\", \"you port\");
  h2.request(\"HEAD\", url);
  resp = h2.getresponse();
  header = resp.getheaders();
  location = header[3][1];  
  sContent = urllib2.urlopen(location).read();
  savePath = \"C:\\\\someweb\\\\%s.rar\" % (id);
  file=open(savePath,\'wb\');
  file.write(sContent);
  file.close(); 
  print savePath + \" saved\";
 except:
  pass;
def working():
 while True:
  arguments = q.get()
  do_somthing_using(arguments)
  sleep(1)
  q.task_done()
for i in range(NUM):
 t = Thread(target=working)
 t.setDaemon(True)
 t.start()
for id in ids:
 q.put(id)
q.join()

希望本文所述对大家的Python程序设计有所帮助。