I'm trying to write a script to test for the existence of a web page, would be nice if it would check without downloading the whole page.
This is my jumping off point, I've seen multiple examples use httplib in the same way, however, every site I check simply returns false.
import httplib
from httplib import HTTP
from urlparse import urlparse
def checkUrl(url):
p = urlparse(url)
h = HTTP(p[1])
h.putrequest('HEAD', p[2])
h.endheaders()
return h.getreply()[0] == httplib.OK
if __name__=="__main__":
print checkUrl("http://www.stackoverflow.com") # True
print checkUrl("http://stackoverflow.com/notarealpage.html") # False
Any ideas?
Edit
Someone suggested this, but their post was deleted.. does urllib2 avoid downloading the whole page?
import urllib2
try:
urllib2.urlopen(some_url)
return True
except urllib2.URLError:
return False
how about this:
import httplib
from urlparse import urlparse
def checkUrl(url):
p = urlparse(url)
conn = httplib.HTTPConnection(p.netloc)
conn.request('HEAD', p.path)
resp = conn.getresponse()
return resp.status < 400
if __name__ == '__main__':
print checkUrl('http://www.stackoverflow.com') # True
print checkUrl('http://stackoverflow.com/notarealpage.html') # False
this will send an HTTP HEAD request and return True if the response status code is < 400.