. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Python Module Index 257 Index 259 iiiTornado Documentation, Release 6.5.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking network RequestHandler): def get(self): self.write("Hello, world") def make_app(): return tornado.web.Application([ (r"/", MainHandler), ]) async def main(): app = make_app() app.listen(8888) await asyncio.Event()

Tornado [https://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking def get(self): self.write("Hello, world") def make_app(): return tornado.web.Application([ (r"/", MainHandler), ]) async def main(): app = make_app() app.listen(8888) spider Structure of a Tornado web application Templates and UI Authentication and security Running and deploying Web framework tornado.web — RequestHandler and Application classes tornado.template — Flexible

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is like Int (see Overflow behavior). If we had declared our function as fib(n::Int), however, the application to BigInt would have been prevented for no reason. In general, you should use the most general julia> 1 + 2 + 3 6 julia> +(1,2,3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is like Int (see Overflow behavior). If we had declared our function as fib(n::Int), however, the application to BigInt would have been prevented for no reason. In general, you should use the most general julia> 1 + 2 + 3 6 julia> +(1,2,3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception

MethodError: objects of type Int64 are not callable Both expressions are interpreted as function application: any expression that is not a numeric literal, when immediately followed by a parenthetical, is julia> 1 + 2 + 3 6 julia> +(1, 2, 3) 6 The infix form is exactly equivalent to the function application form – in fact the former is parsed to produce the function call internally. This also means that Exceptions to be tested for, and for the graceful handling of things that may ordinarily break your application. For example, in the below code the function for square root would normally throw an exception