1.1 The Tornado Authors Mar 01, 2019 Contents 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 Installation 9 5 Documentation 11 5.1 User’s guide . . . . . . . . . . . . . . . . . . . . Release 5.1.1 6 Chapter 2. Hello, world CHAPTER 3 Threads and WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

com/tornadoweb/tornado/tree/stable/demos/chat]. Threads and WSGI Tornado is different from most Python web frameworks. It is not based on WSGI [https://wsgi.readthedocs.io/en/latest/], and it is typically run for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to to use Tornado’s own interfaces (such as tornado.web) directly instead of using WSGI. In general, Tornado code is not thread-safe. The only method in Tornado that is safe to call from other threads is

processes Integration with other services tornado.auth — Third-party login with OpenID and OAuth tornado.wsgi — Interoperability with other Python frameworks and servers tornado.platform.asyncio — Bridge between behind a load balancer Static files and aggressive file caching Debug mode and automatic reloading WSGI and Google App Engine Introduction Tornado [http://www.tornadoweb.org] is a Python web framework server together offer a full-stack alternative to WSGI [http://www.python.org/dev/peps/pep-3333/]. While it is possible to use the Tornado web framework in a WSGI container (WSGIAdapter), or use the Tornado

full-stack alternative to WSGI. While it is possible to use the Tornado web framework in a WSGI container (WSGIAdapter), or use the Tornado HTTP server as a container for other WSGI frameworks (WSGIContainer) and deploying it is a little different from other Python web frameworks. Instead of configuring a WSGI container to find your application, you write a main() function that starts the server: def main(): confuse some IDEs. WSGI and Google App Engine Tornado is normally intended to be run on its own, without a WSGI container. However, in some environments (such as Google App Engine), only WSGI is allowed and

6.4 The Tornado Authors Jan 12, 2024 CONTENTS 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . 4 6 Chapter 2. Hello, world CHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

6.4 The Tornado Authors Nov 29, 2023 CONTENTS 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . 4 6 Chapter 2. Hello, world CHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

6.4 The Tornado Authors Nov 29, 2023 CONTENTS 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . 4 6 Chapter 2. Hello, world CHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

3.3 The Tornado Authors Aug 11, 2023 CONTENTS 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . 3 6 Chapter 2. Hello, world CHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

6.5.1 The Tornado Authors May 22, 2025CONTENTS 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . 5.1 6 Chapter 2. Hello, worldCHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to

6.1 The Tornado Authors Oct 31, 2020 Contents 1 Quick links 3 2 Hello, world 5 3 Threads and WSGI 7 4 asyncio Integration 9 5 Installation 11 6 Documentation 13 6.1 User’s guide . . . . . . . Release 6.1 6 Chapter 2. Hello, world CHAPTER 3 Threads and WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process. for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications should be written to