Http下载
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# -*- coding: cp936 -*-
'''
Created on 2011-8-4

@author: flyfox

@function:实现根据url下载
'''
import urllib,datetime,sys
def download(url):
    starttime =  datetime.datetime.now()
    print 'download start time is %s'% starttime
    urllib.urlretrieve(url,'test.html')  #开始下载,test.exe为下载后保存的文件名
    endtime =  datetime.datetime.now()
    print 'download end time is %s'% endtime   
    print 'you download the file use time %s s' % (endtime - starttime).seconds
   
if __name__ == '__main__':
    if len(sys.argv) == 2:
        try:
            download(sys.argv[1])
        except IOError:
            print 'url not found'
    else:
        download('http://www.python.org/')

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