-Tornado Documentation
-=====================
+Tornado Web Server
+==================
+
+.. image:: tornado.png
+ :alt: Tornado Web Server
+
+`Tornado <http://www.tornadoweb.org/>`_ is an open source version of
+the scalable, non-blocking web server and tools that power `FriendFeed
+<http://friendfeed.com/>`_. The FriendFeed application is written
+using a web framework that looks a bit like `web.py
+<http://webpy.org/>`_ or `Google's webapp
+<http://code.google.com/appengine/docs/python/tools/webapp/>`_, but
+with additional tools and optimizations to take advantage of the
+underlying non-blocking infrastructure.
+
+The framework is distinct from most mainstream web server frameworks
+(and certainly most Python frameworks) because it is non-blocking and
+reasonably fast. Because it is non-blocking and uses `epoll
+<http://www.kernel.org/doc/man-pages/online/pages/man4/epoll.4.html>`_
+or ``kqueue``, it can handle thousands of simultaneous standing
+connections, which means it is ideal for real-time web services. We
+built the web server specifically to handle FriendFeed's real-time
+features — every active user of FriendFeed maintains an open
+connection to the FriendFeed servers. (For more information on scaling
+servers to support thousands of clients, see The `C10K problem
+<http://www.kegel.com/c10k.html>`_.)
+
+Upgrading from Tornado 1.x
+--------------------------
+
+Tornado 2.0 introduces several potentially backwards-incompatible
+changes, including in particular automatic escaping of template
+output. Users who are upgrading from Tornado 1.x should see the
+`version 2.0 release notes </documentation/releases/v2.0.0.html>`_ for
+information about backwards compatibility.
+
+Quick links
+-----------
+
+* `Documentation <documentation.html>`_
+* `Download version |version| <https://github.com/downloads/facebook/tornado/tornado-|version|.tar.gz>`_ (`release notes </documentation/releases.html>`_)
+* `Source (github) <https://github.com/facebook/tornado>`_
+* `Mailing list <http://groups.google.com/group/python-tornado>`_
+* `Wiki <https://github.com/facebook/tornado/wiki/Links>`_
+
+Hello, world
+------------
+
+Here is the canonical "Hello, world" example 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()</code></pre>
+
+See the `Tornado documentation </documentation/index.html>`_ for a
+detailed walkthrough of the framework.
+
+Installation
+------------
+
+**Automatic installation:** Tornado is listed in `PyPI
+<http://pypi.python.org/pypi/tornado>`_ 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 `tornado-|version|.tar.gz <https://github.com/downloads/facebook/tornado/tornado-{{version}}.tar.gz>`_::
+
+ 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
+<https://github.com/facebook/tornado>`_. On Python 2.6 and 2.7, it is
+also possible to simply add the tornado directory to your
+``PYTHONPATH`` instead of building with ``setup.py``, since the
+standard library includes ``epoll`` support.
+
+**Prerequisites:** Tornado runs on Python 2.5, 2.6, 2.7 and 3.2.
+
+* On Python 2.6 and 2.7, there are no dependencies outside the Python
+ standard library, although `PycURL
+ <http://pycurl.sourceforge.net/>`_ (version 7.18.2 or higher
+ required; version 7.21.1 or higher recommended) may be used if
+ desired.
+* On Python 2.5, PycURL is required, along with `simplejson
+ <http://pypi.python.org/pypi/simplejson/>`_ and the Python
+ development headers (typically obtained by installing a package
+ named something like ``python-dev`` from your operating system).
+* On Python 3.2, the `distribute
+ <http://pypi.python.org/pypi/distribute>`_ package is required.
+ Note that Python 3 support is relatively new and may have bugs.
+
+**Platforms:** Tornado should run on any Unix-like platform, although
+for the best performance and scalability only Linux and BSD (including
+BSD derivatives like Mac OS X) are recommended.
+
+Discussion and support
+----------------------
+
+You can discuss Tornado and report bugs on `the Tornado developer
+mailing list <http://groups.google.com/group/python-tornado>`_. Links
+to additional resources can be found on the `Tornado wiki
+<https://github.com/facebook/tornado/wiki/Links>`_.
+
+Tornado is one of `Facebook's open source technologies
+<http://developers.facebook.com/opensource/>`_. It is available under
+the `Apache License, Version 2.0
+<http://www.apache.org/licenses/LICENSE-2.0.html>`_.
+
+This web site and all documentation is licensed under `Creative
+Commons 3.0 <http://creativecommons.org/licenses/by/3.0/>`_.
.. toctree::
- :titlesonly:
-
- overview
- webframework
- networking
- integration
- utilities
- releases
-
-
-
-Indices and tables
-==================
+ :hidden:
+
+ documentation
-* :ref:`genindex`
-* :ref:`modindex`
-* :ref:`search`