many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must interfaces), and Futures lend themselves well to use with coroutines. Coroutines will be discussed in depth in the next section of this guide. Here is the coroutine version of our sample function, which is when running on Google App Engine. Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth New method OAuth2Mixin.oauth2_request can be used to make authenticated requests with

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must interfaces), and Futures lend themselves well to use with coroutines. Coroutines will be discussed in depth in the next section of this guide. Here is the coroutine version of our sample function, which is when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 5.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). 196 Chapter 6. Documentation Tornado Documentation, Release 6.4 tornado.auth • New method OAuth2Mixin

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). 196 Chapter 6. Documentation Tornado Documentation, Release 6.4 tornado.auth • New method OAuth2Mixin

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). 196 Chapter 6. Documentation Tornado Documentation, Release 6.4 tornado.auth • New method OAuth2Mixin

many reasons: network I/O, disk I/O, mutexes, etc. In fact, every function blocks, at least a little bit, while it is running and using the CPU (for an extreme example that demonstrates why CPU blocking must in coroutines while this is difficult to achieve with callbacks. Coroutines will be discussed in depth in the next section of this guide. 6.1.3 Coroutines Coroutines are the recommended way to write when running on Google App Engine. • Binary wheels are provided for Python 3.5 on Windows (32 and 64 bit). tornado.auth • New method OAuth2Mixin.oauth2_request can be used to make authenticated requests