b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

in which generators aren’t allowed to return values. To overcome this, Tornado coroutines raise a special kind of exception called a Return. The coroutine catches this exception and treats it like a returned handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

in which generators aren’t allowed to return values. To overcome this, Tornado coroutines raise a special kind of exception called a Return. The coroutine catches this exception and treats it like a returned handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

= yield c() b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences between the two forms handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

= yield c() b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences between the two forms handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

= yield c() b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences between the two forms handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to terminate the handler without calling write_error in make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

= yield c() b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences between the two forms handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to ter- minate the handler without calling write_error make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and

= yield c() b = await c() # "return" and "yield" # cannot be mixed in # Python 2, so raise a # special exception. # Return normally raise gen.Return(b) return b Other differences between the two forms handler methods instead of write_error by calling set_status, writing a response, and returning. The special exception tornado.web.Finish may be raised to ter- minate the handler without calling write_error make it easy to support standard, reusable UI widgets across your application. UI modules are like special function calls to render components of your page, and they can come packaged with their own CSS and