expression and a handler class. Order matters; the first matching rule is used. If the regular expression contains capturing groups, these groups are the path arguments and will be passed to the handler’s HTTP method subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define one or more of these methods to handle with arguments corresponding to the capturing groups of the routing rule that matched. Within a handler, call methods such as RequestHandler.render or RequestHandler.write to produce a response. render()

expression and a handler class. Order matters; the first matching rule is used. If the regular expression contains capturing groups, these groups are the path arguments and will be passed to the handler’s HTTP method subclasses of RequestHandler. The main entry point for a handler subclass is a method named after the HTTP method being handled: get(), post(), etc. Each handler may define one or more of these methods to handle called with arguments corresponding to the capturing groups of the routing rule that matched.Within a handler, call methods such as RequestHandler.render or RequestHandler.write to produce a response. render()

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order to another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order to another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order to another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order to another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order to another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O).CHAPTER 12. TYPES 154 Moreover, you can also define show methods for other another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable register_error_hint(handler, exceptiontype)CHAPTER 43. ESSENTIALS 705 Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception

but you should not define new display methods unless you are defining a new multimedia display handler (see Multimedia I/O). Moreover, you can also define show methods for other MIME types in order another task to run, or block waiting for external events. If all goes well, eventually an event handler will call notify on the condition, which causes tasks waiting for that condition to become runnable Experimental.register_error_hint(handler, exceptiontype) Register a "hinting" function handler(io, exception) that can suggest potential ways for users to circumvent errors. handler should examine exception