Tornado is great, if you can code asynchronously ...
Greenlet is cool to create asynchronous programs using micro-threads.
What about a mix of the two ?
To install tornalet, you can clone this repository or use PyPI:
easy_install tornalet
pip install tornalet
To enable tornalet, prefix each of your handler's method the decorator @tornalet.tornalet.
Then decorate with tornalet.asyncify each of your blocking function. This will make your function asynchronous.
import tornalet
import tornado.web
import random
URL = "http://chucknorrisfacts.fr/fortunes/fortunes.txt"
class MainHandler(tornado.web.RequestHandler):
@tornalet.tornalet
def get(self):
http_client = tornado.httpclient.AsyncHTTPClient()
# Here's the magic : this line is not synchronous.
facts = tornalet.asyncify(http_client.fetch)(URL).body.split("%")
fact = facts[random.randrange(len(facts))]
self.write("<pre>%s</pre>" % (fact, ))
...
Tornadolet is licensed under the Apache Licence, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).