python urllib从远程服务器下载文件到本地，pythonurllib,#!/usr/bin/e

python urllib从远程服务器下载文件到本地，pythonurllib,#!/usr/bin/e

#!/usr/bin/env python#-*-coding:utf-8-*-'#Filename:download_file.pyimport sys,osimport urllibdef urlcallback(a,b,c):    """        call back function        a,已下载的数据块        b,数据块的大小        c,远程文件的大小    """    print "callback"    prec=100.0*a*b/c    if 100 < prec:        prec=100    print "%.2f%%"%(prec,)def main(argv):    """        main    """    print "start..."    urllib.urlretrieve("<a href="http://jaist.dl.sourceforge.net/project/pydev/pydev/Pydev%201.6.3/org.python.pydev.feature-1.6.3.2010100513.zip">http://jaist.dl.sourceforge.net/project/pydev/pydev/Pydev%201.6.3/org.python.pydev.feature-1.6.3.2010100513.zip"\\                      ,"/tmp/python.pydev.zip"\\                      ,urlcallback)    print "end..."if __name__=="__main__":    main(sys.argv[1:])