Python下载文件，显示进度

ab168

import urllib
url = "http://www.top100.cn/download/dl.php?n=Eat+Dirt.mp3&al=sgchdnctugy"
file = "e:/test.mp3"
def reporthook(blocks_read,block_size,total_size):
if not blocks_read:
print ("Connection opened")
if total_size <0:
print "Read %d blocks"  % blocks_read
else:
print "downloading: %d KB, totalsize: %d KB" % (blocks_read*block_size/1024.0,total_size/1024.0)
if __name__ == '__main__':
urllib.urlretrieve(url,file,reporthook)