How do you get default headers in a urllib2 Request?

Question

I have a Python web client that uses urllib2. It is easy enough to add HTTP headers to my outgoing requests. I just create a dictionary of the headers I want to add, and pa

Answer 1

It sounds to me like you're looking for the headers of the response object, which include Connection: close, etc. These headers live in the object returned by urlopen. Getting at them is easy enough:

from urllib2 import urlopen
req = urlopen("http://www.google.com")
print req.headers.headers

req.headers is a instance of httplib.HTTPMessage

Answer 2

see urllib2.py:do_request (line 1044 (1067)) and urllib2.py:do_open (line 1073) (line 293) self.addheaders = [('User-agent', client_version)] (only 'User-agent' added)