tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling [http://en.wikipedia.org/wiki/Push_technology#Long_polling] html#http.client.responses]. RequestHandler.set_header(name: str, value: Union[bytes, str, int, numbers.Integral, datetime.datetime]) → None[source] Sets the given response header name and value. All specification for the Date header). RequestHandler.add_header(name: str, value: Union[bytes, str, int, numbers.Integral, datetime.datetime]) → None[source] Adds the given response header and value. Unlike set_header

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling [http://en.wikipedia.org/wiki/Push_technology#Long_polling] html#http.client.responses]. RequestHandler.set_header(name: str, value: Union[bytes, str, int, numbers.Integral, datetime.datetime]) → None[source] Sets the given response header name and value. All specification for the Date header). RequestHandler.add_header(name: str, value: Union[bytes, str, int, numbers.Integral, datetime.datetime]) → None[source] Adds the given response header and value. Unlike set_header

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: is in http.client.responses. RequestHandler.set_header(name: str, value: Union[bytes, str, int, numbers.Integral, date- time.datetime]) → None Sets the given response header name and value. All header specification for the Date header). RequestHandler.add_header(name: str, value: Union[bytes, str, int, numbers.Integral, date- time.datetime]) → None Adds the given response header and value. Unlike set_header

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: is in http.client.responses. RequestHandler.set_header(name: str, value: Union[bytes, str, int, numbers.Integral, date- time.datetime]) → None Sets the given response header name and value. All header specification for the Date header). RequestHandler.add_header(name: str, value: Union[bytes, str, int, numbers.Integral, date- time.datetime]) → None Adds the given response header and value. Unlike set_header

. json_encode can be used to escape strings, numbers, lists, and dicts. In this example, the JavaScript variable x will be the corresponding JavaScript tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: time() → float Returns the current time according to the IOLoop’s clock. The return value is a floating-point number relative to an unspecified time in the past. Historically, the IOLoop could be customized

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling [http://en.wikipedia.org/wiki/Push_technology#Long_polling] [https://docs.python.org/3/library/functions.html#int], Integral [https://docs.python.org/3/library/numbers.html#numbers.Integral], datetime [https://docs.python.org/3/library/datetime.html#datetime.datetime]]) [https://docs.python.org/3/library/functions.html#int], Integral [https://docs.python.org/3/library/numbers.html#numbers.Integral], datetime [https://docs.python.org/3/library/datetime.html#datetime.datetime]])

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: time() → float Returns the current time according to the IOLoop’s clock. The return value is a floating-point number relative to an unspecified time in the past. Historically, the IOLoop could be customized invocation runs too long. • PeriodicCallback now accepts datetime.timedelta objects in addition to numbers of milliseconds. • Avoid logging “Event loop is closed” during shutdown-related race conditions

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: time() → float Returns the current time according to the IOLoop’s clock. The return value is a floating-point number relative to an unspecified time in the past. Historically, the IOLoop could be customized invocation runs too long. • PeriodicCallback now accepts datetime.timedelta objects in addition to numbers of milliseconds. • Avoid logging “Event loop is closed” during shutdown-related race conditions

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: time() → float Returns the current time according to the IOLoop’s clock. The return value is a floating-point number relative to an unspecified time in the past. Historically, the IOLoop could be customized invocation runs too long. • PeriodicCallback now accepts datetime.timedelta objects in addition to numbers of milliseconds. • Avoid logging “Event loop is closed” during shutdown-related race conditions

tornado.web provides a simple web framework with asynchronous features that allow it to scale to large numbers of open connections, making it ideal for long polling. Here is a simple “Hello, world” example app: time() → float Returns the current time according to the IOLoop’s clock. The return value is a floating-point number relative to an unspecified time in the past. Historically, the IOLoop could be customized invocation runs too long. • PeriodicCallback now accepts datetime.timedelta objects in addition to numbers of milliseconds. • Avoid logging “Event loop is closed” during shutdown-related race conditions