Question

With this code, urllib2 make a GET request:

#!/usr/bin/python
import urllib2
req = urllib2.Request('http://www.google.fr')
req.add_header('User-Agent', '')
response = urllib2.urlopen(req)

With this one (which is almost the same), a POST request:

#!/usr/bin/python
import urllib2
headers = { 'User-Agent' : '' }
req = urllib2.Request('http://www.google.fr', '', headers)
response = urllib2.urlopen(req)

My question is: how can i make a GET request with the second code style ?

The documentation (http://docs.python.org/release/2.6.5/library/urllib2.html) says that

headers should be a dictionary, and
will be treated as if add_header() was
called with each key and value as
arguments

Yeah, except that in order to use the headers parameter, you have to pass data, and when data is passed, the request become a POST.

Any help will be very appreciated.

Answer 1

Use:

req = urllib2.Request('http://www.google.fr', None, headers)

or:

req = urllib2.Request('http://www.google.fr', headers=headers)