Metadata-Version: 1.1 Name: tornado Version: 4.0 Summary: Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. Home-page: http://www.tornadoweb.org/ Author: Facebook Author-email: python-tornado@googlegroups.com License: http://www.apache.org/licenses/LICENSE-2.0 Description: Tornado Web Server ================== `Tornado `_ is a Python web framework and asynchronous networking library, originally developed at `FriendFeed `_. By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for `long polling `_, `WebSockets `_, and other applications that require a long-lived connection to each user. Upgrade notes ------------- As of Tornado 3.2, the `backports.ssl_match_hostname `_ package must be installed when running Tornado on Python 2. This will be installed automatically when using ``pip`` or ``easy_install``. Quick links ----------- * `Documentation `_ * `Source (github) `_ * `Mailing list `_ * `Stack Overflow `_ * `Wiki `_ Hello, world ------------ Here is a simple "Hello, world" example web app for Tornado:: import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") application = tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start() This example does not use any of Tornado's asynchronous features; for that see this `simple chat room `_. Installation ------------ **Automatic installation**:: pip install tornado Tornado is listed in `PyPI `_ and can be installed with ``pip`` or ``easy_install``. Note that the source distribution includes demo applications that are not present when Tornado is installed in this way, so you may wish to download a copy of the source tarball as well. **Manual installation**: Download the latest source from `PyPI `_. .. parsed-literal:: tar xvzf tornado-$VERSION.tar.gz cd tornado-$VERSION python setup.py build sudo python setup.py install The Tornado source code is `hosted on GitHub `_. **Prerequisites**: Tornado runs on Python 2.6, 2.7, 3.2, 3.3, and 3.4. It requires the `certifi `_ package on all Python versions, and the `backports.ssl_match_hostname `_ package on Python 2. These will be installed automatically when using ``pip`` or ``easy_install``). Some Tornado features may require one of the following optional libraries: * `unittest2 `_ is needed to run Tornado's test suite on Python 2.6 (it is unnecessary on more recent versions of Python) * `concurrent.futures `_ is the recommended thread pool for use with Tornado and enables the use of ``tornado.netutil.ThreadedResolver``. It is needed only on Python 2; Python 3 includes this package in the standard library. * `pycurl `_ is used by the optional ``tornado.curl_httpclient``. Libcurl version 7.18.2 or higher is required; version 7.21.1 or higher is recommended. * `Twisted `_ may be used with the classes in `tornado.platform.twisted`. * `pycares `_ is an alternative non-blocking DNS resolver that can be used when threads are not appropriate. * `Monotime `_ adds support for a monotonic clock, which improves reliability in environments where clock adjustments are frequent. No longer needed in Python 3.3. **Platforms**: Tornado should run on any Unix-like platform, although for the best performance and scalability only Linux (with ``epoll``) and BSD (with ``kqueue``) are recommended for production deployment (even though Mac OS X is derived from BSD and supports kqueue, its networking performance is generally poor so it is recommended only for development use). Tornado will also run on Windows, although this configuration is not officially supported and is recommended only for development use. Discussion and support ---------------------- You can discuss Tornado on `the Tornado developer mailing list `_, and report bugs on the `GitHub issue tracker `_. Links to additional resources can be found on the `Tornado wiki `_. New releases are announced on the `announcements mailing list `_. Tornado is one of `Facebook's open source technologies `_. It is available under the `Apache License, Version 2.0 `_. This web site and all documentation is licensed under `Creative Commons 3.0 `_. Platform: UNKNOWN Classifier: License :: OSI Approved :: Apache Software License Classifier: Programming Language :: Python :: 2 Classifier: Programming Language :: Python :: 2.6 Classifier: Programming Language :: Python :: 2.7 Classifier: Programming Language :: Python :: 3 Classifier: Programming Language :: Python :: 3.2 Classifier: Programming Language :: Python :: 3.3 Classifier: Programming Language :: Python :: 3.4 Classifier: Programming Language :: Python :: Implementation :: CPython Classifier: Programming Language :: Python :: Implementation :: PyPy