Determine Whether File Exists On HTTP Server

[FeU Hagen]

This works with HTTP:

import sys      #   exc_info
import httplib  #   HTTPConnection

HOST = "www.python.org"
PAGE = "/path/to/some/file.html"

try:
    c = httplib.HTTPConnection( HOST )
    # c._http_vsn = 10; c._http_vsn_str = "HTTP/1.0"
    c.connect( )
    c.putrequest ( "GET", PAGE )
    c.endheaders()
    r = c.getresponse()
    print "%s\n%s\n%s\n" % (r.status, r.reason, r.msg)
    if r.status == 200: # OK
        print "%s exists" % PAGE
        PageContent = r.read()  # this is the requested html file in a
string
    elif r.status == 404:   # not found
        print "%s does not exist" % PAGE
        Page404 = r.read()  # this is the 404 page in a string
    else:
        print "%s : status %s %s %s" % (PAGE, r.status, r.reason, r.msg)
except:
    print sys.exc_info()[1]



Greetings
Harald Walter



"OvErboRed" <publicNO at SPAMoverbored.net> wrote in message
news:Xns94F1EA84483Byangstaoverbored at 127.0.0.1...
> Hi, I'm trying to determine whether a given URL exists. I'm new to Python
> but I think that urllib is the tool for the job. However, if I give it a
> non-existent file, it simply returns the 404 page. Aside from grepping
this
> for '404', is there a better way to do this? (Preferrably, there is a
> solution that can be applied to both HTTP and FTP.) Thanks in advance.