D:\tmp\6>python get.py http://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/
Commons-logo.svg/24px-Commons-logo.svg.png
Traceback (most recent call last):
  File "get.py", line 41, in <module>
    main()
  File "get.py", line 37, in main
    download_file(arg)
  File "get.py", line 13, in download_file
    u = urllib2.urlopen(url)
  File "c:\Python27\lib\urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "c:\Python27\lib\urllib2.py", line 384, in open
    protocol = req.get_type()
  File "c:\Python27\lib\urllib2.py", line 245, in get_type
    raise ValueError, "unknown url type: %s" % self.__original
ValueError: unknown url type: get.py

import urllib2
import sys
import urllib2

def download_file2(url):
	print(url)

def download_file(uri):
    #url = "http://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png"
    url = uri

    file_name = url.split('/')[-1]
    u = urllib2.urlopen(url)
    f = open(file_name, 'w')
    meta = u.info()
    file_size = int(meta.getheaders("Content-Length")[0])
    print "Downloading: %s Bytes: %s" % (file_name, file_size)

    file_size_dl = 0
    block_sz = 8192
    while True:
        buffer = u.read(block_sz)
        if not buffer:
            break

        file_size_dl += block_sz
        f.write(buffer)
        status = r"%10d  [%3.2f%%]" % (file_size_dl, file_size_dl * 100. / file_size)
        status = status + chr(8)*(len(status)+1)
        print status,

    f.close()
    return 0

def main():
    for arg in sys.argv:
        download_file(arg)
    return 0

if __name__ == "__main__":
    main()

for arg in sys.argv[1:]:
    download_file(arg)