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 PyPI [https://pypi.python.org/pypi/tornado], release notes) Source (GitHub) [https://github.com/tornadoweb/tornado] Mailing lists: discussion [https://groups.google.com/forum/#!forum/python-tornado] and announcements announcements [https://groups.google.com/forum/#!forum/python-tornado-announce] Stack Overflow [https://stackoverflow.com/questions/tagged/tornado] Wiki [https://github.com/tornadoweb/tornado/wiki/Links]

. . . . . . . . . . . 165 7 Discussion and support 255 Python Module Index 257 Index 259 iiiTornado Documentation, Release 6.5.1 Tornado is a Python web framework and asynchronous networking library 6.5.1 6 Chapter 2. Hello, worldCHAPTER THREE THREADS AND WSGI Tornado is different from most Python web frameworks. It is not based on WSGI, and it is typically run with only one thread per process process. See the User’s guide for more on Tornado’s approach to asynchronous programming. While some support of WSGI is available in the tornado.wsgi module, it is not a focus of development and most applications

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480 38.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 483 38.4 Noteworthy differences from C/C++ 1069 57 LLVM Interface 1083CONTENTS x 58 C Standard Library 1084 59 StackTraces 1088 60 SIMD Support 1090 III Standard Library 1091 61 ArgTools 1092 61.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1637 102.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1638 102.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480 38.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 483 38.4 Noteworthy differences from C/C++ 1069 57 LLVM Interface 1083CONTENTS x 58 C Standard Library 1084 59 StackTraces 1088 60 SIMD Support 1090 III Standard Library 1091 61 ArgTools 1092 61.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1637 102.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1638 102.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 518 39.4 Noteworthy differences from C/C++ Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1946 106.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1947 106.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 518 39.4 Noteworthy differences from C/C++ Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1946 106.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1947 106.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 518 39.4 Noteworthy differences from C/C++ Interface 1250 59 LLVM Interface 1267 60 C Standard Library 1268 61 StackTraces 1274 62 SIMD Support 1276 III Standard Library 1277 63 ArgTools 1278 63.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1946 106.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1947 106.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 530 39.4 Noteworthy differences from C/C++ Interface 1301 60 LLVM Interface 1318 61 C Standard Library 1319 62 StackTraces 1325 63 SIMD Support 1327 III Standard Library 1328 64 ArgTools 1329 64.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1995 107.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1996 107.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 529 39.4 Noteworthy differences from C/C++ Interface 1300 60 LLVM Interface 1317 61 C Standard Library 1318 62 StackTraces 1324 63 SIMD Support 1326 III Standard Library 1327 64 ArgTools 1328 64.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1995 107.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1996 107.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .

R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 526 39.3 Noteworthy differences from Python . . . . . . . . . . . . . . . . . . . . . . . . . . 529 39.4 Noteworthy differences from C/C++ Interface 1300 60 LLVM Interface 1317 61 C Standard Library 1318 62 StackTraces 1324 63 SIMD Support 1326 III Standard Library 1327 64 ArgTools 1328 64.1 Argument Handling . . . . . . . . . . . . . . . . . . . . 1995 107.4 External Profiler Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1996 107.5 Sanitizer support . . . . . . . . . . . . . . . . . . . . . . . . .