urllib2 only supports GET or POST HTTP request methods.
 This patch adds support for other methods.

>>> import urllib2
>>> r =
urllib2.Request("http://jdiworks.net/",method="HEAD")
>>> u = urllib2.urlopen(r)
>>> u.read()
''
>>> h = u.headers.getheader
>>> h("content-length")
'4754'
>>> h("accept-ranges")
'bytes'
>>> h("date")
'Fri, 28 Jan 2005 18:39:04 GMT'
>>> h("etag")
'"728074-1292-314c1c40"'
>>> h("last-modified")
'Thu, 01 Jul 2004 23:11:37 GMT'

TODO: fix 3xx redirect with a HEAD