[BangPypers] How to check file size before downloading it
Anand Balachandran Pillai
abpillai at gmail.com
Wed May 7 14:11:54 CEST 2008
Make a HEAD request. Here is one way of doing it, using urllib2.
class HeadRequest(urllib2.Request):
""" A request class which performs a HEAD request """
def get_method(self):
return 'HEAD'
req = HeadRequest(url)
f = urllib2.urlopen(req)
headers = dict(f.headers)
print headers.get('content-length',-1)
--Anand
On Wed, May 7, 2008 at 5:20 PM, Anand Chitipothu <anandology at gmail.com> wrote:
> On Wed, May 7, 2008 at 4:49 PM, Gurpreet Sachdeva
> <gurpreet.sachdeva at gmail.com> wrote:
>
> > Is there a way in urllib to check file size (from the webserver) before
> > downloading it? Or any other python module from this?
>
> If you are on *nix, you can use curl -I to make a HEAD request, which
> contains Content-Length header.
>
> $ curl -I http://www.google.com/favicon.ico
> HTTP/1.1 200 OK
> Content-Type: image/x-icon
> Last-Modified: Wed, 07 Jun 2006 19:35:34 GMT
> Expires: Sun, 17 Jan 2038 19:14:07 GMT
> Date: Wed, 07 May 2008 11:45:57 GMT
> Server: gws
> Content-Length: 1406
> Age: 7
>
>
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--
-Anand
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