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 blocking code. asyncio Integration Tornado is integrated with the standard library asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] module and shares the same event loop (by default since Tornado 5.0). In general, libraries designed for use with asyncio [https://docs.python.org/3/library/asyncio.html#module-asyncio] can be mixed freely with Tornado. Installation pip install tornado

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 25 5 Mathematical Operations and Elementary Functions 26 5.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Raw String Literals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 8 Functions 67 8.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 8.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 8.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 25 5 Mathematical Operations and Elementary Functions 26 5.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Raw String Literals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 8 Functions 67 8.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 8.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 8.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names

. . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Mathematical Operations and Elementary Functions 30 6.1 Arithmetic Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Annotated Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 9 Functions 72 9.1 Argument Passing Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Keyword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 9.4 Operators Are Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 9.5 Operators With Special Names