Populating an Unnamed Web form Field

I have run:

 import re
from mechanize import Browser
br = Browser()
br.set_handle_robots(False)
br.set_handle_equiv(False)
br.addheaders = [('User-agent', 'Mozilla/5.0')] 
br.open('http://ift.tt/1CzZuZk')
for form in br.forms():
    print form.name

The answer is

None

However this is the only field on the site to populate,

As it is not named how to i get python to populate this field?

cheers

B