BadYieldError using @relax decorator

[cjwebb]

(Hopefully) quick question, that I have also put here http://stackoverflow.com/questions/11502802/badyielderror-in-tornado-gen-when-using-corduroy-couchdb-async-library

I receive a BadYieldError when running the code written in the Corduroy guide, and using the relaxed requesthandler.

Traceback (most recent call last):
File "c:\env\pymeals_tornado\lib\site-packages\tornado\web.py", line 1074, in wrapper
return method(self, args, *kwargs)
File "c:\env\pymeals_tornado\lib\site-packages\corduroy__init.py", line 43, in r_e_l_a_x
return gen.engine(func)(_args, *_kwargs)
File "c:\env\pymeals_tornado\lib\site-packages\tornado\gen.py", line 107, in wrapper
runner.run()
File "c:\env\pymeals_tornado\lib\site-packages\tornado\gen.py", line 319, in run
yielded = self.gen.throw(*exc_info)
File "test.py", line 10, in get
doc = yield people_db.get(user_id)
BadYieldError: yielded unknown object <Document 65d936ee54417e46479a908f7a0038ef[2] {name:Colin}>

Is there some additional setup required, or am I missing something basic?
Pip freeze yields the following dependencies on a virtualevn python 2.7.2
CouchDB==0.8
certifi==0.0.8
chardet==1.0.1
corduroy==0.9.1
lettuce==0.1.35
lxml==2.3
nose==1.1.2
oauthlib==0.1.3
pyasn1==0.1.3
rsa==3.0.1
selenium==2.17.0
splinter==0.4.4
tornado==2.2.1

[paavopere]

See #5