python - BadYieldError en tornado.gen avec velours côtelé couchdb async library - Stack Overflow

I'm trying to use Corduroy to talk to a CouchDB asynchronously using the python Tornado Web Server.

The code below comes from the Corduroy guide, with a couple of alterations.

import tornado.web
from corduroy import Database, NotFound, relax

people_db = Database('people')

class RelaxedHello(tornado.web.RequestHandler):
    @relax
    def get(self, user_id):
        try:
            doc = yield people_db.get(user_id)
            self.write('hello %s'%(doc['name']))
        except NotFound:
            self.write('hello whoever you are')
        self.finish()

application = tornado.web.Application([
    (r'/hi/([^/]+)', RelaxedHello),
]).listen(1920)
tornado.ioloop.IOLoop.instance().start()

The problem I'm having is that I receive a BadYieldError despite finding the couch document perfectly well. I suspect it's something to do with the tornado.gen module not being set up properly (or something?). Using corduroy without the @relax decorator, and with a callback works fine.

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}>

I'm trying to use Corduroy to talk to a CouchDB asynchronously using the python Tornado Web Server.

The code below comes from the Corduroy guide, with a couple of alterations.

import tornado.web
from corduroy import Database, NotFound, relax

people_db = Database('people')

class RelaxedHello(tornado.web.RequestHandler):
    @relax
    def get(self, user_id):
        try:
            doc = yield people_db.get(user_id)
            self.write('hello %s'%(doc['name']))
        except NotFound:
            self.write('hello whoever you are')
        self.finish()

application = tornado.web.Application([
    (r'/hi/([^/]+)', RelaxedHello),
]).listen(1920)
tornado.ioloop.IOLoop.instance().start()

The problem I'm having is that I receive a BadYieldError despite finding the couch document perfectly well. I suspect it's something to do with the tornado.gen module not being set up properly (or something?). Using corduroy without the @relax decorator, and with a callback works fine.

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}>

Source