An asynchronous library for accessing mongo with tornado.ioloop
Branch: master
Clone or download
Latest commit 3da47c9 May 20, 2014
Type Name Latest commit message Commit time
Failed to load latest commit information.
asyncmongo tag 1.3 May 20, 2014
.gitignore bump rev; working install from sdist Oct 10, 2010
.travis.yml Add support for replica sets Apr 3, 2013
ChangeLog tag 1.3 May 20, 2014
LICENSE Address issue 1 Nov 19, 2010
MANIFEST Add support for replica sets Apr 3, 2013 bump 1.3-alpha Apr 3, 2013 remove install_requires May 20, 2014


AsyncMongo is an asynchronous library for accessing mongo which is built on the tornado ioloop.

Build Status


Installing: pip install asyncmongo


asyncmongo syntax strives to be similar to pymongo.

import asyncmongo
import tornado.web

class Handler(tornado.web.RequestHandler):
    def db(self):
        if not hasattr(self, '_db'):
            self._db = asyncmongo.Client(pool_id='mydb', host='', port=27017, maxcached=10, maxconnections=50, dbname='test')
        return self._db

    def get(self):
        self.db.users.find({'username': self.current_user}, limit=1, callback=self._on_response)
        # or
        # conn = self.db.connection(collectionname="...", dbname="...")
        # conn.find(..., callback=self._on_response)

    def _on_response(self, response, error):
        if error:
            raise tornado.web.HTTPError(500)
        self.render('template', full_name=response['full_name'])


Some features are not currently implemented:

  • directly interfacing with indexes, dropping collections
  • retrieving results in batches instead of all at once (asyncmongo's nature means that no calls are blocking regardless of the number of results you are retrieving)
  • tailable cursors #15


The following two python libraries are required


Please report any issues via github issues