access (to mitigate this use ThreadedResolver or a tornado.curl_httpclient with a properly-configured build of libcurl). In the context of Tornado we generally talk about blocking in the context of network FreeBSD systems) What’s new in Tornado 4.0.1 Aug 12, 2014 The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeatedly. tornado.template Exceptions in template

access (to mitigate this use ThreadedResolver or a tornado.curl_httpclient with a properly-configured build of libcurl). In the context of Tornado we generally talk about blocking in the context of network systems) 4.9.14 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeatedly. tornado.template • Exceptions in template

systems) 6.9.25 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeatedly. tornado.template • Exceptions in template

systems) 5.9.19 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeatedly. tornado.template • Exceptions in template

systems) 6.9.24 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeatedly. tornado.template • Exceptions in template

6.4 6.9.31 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeat- edly. tornado.template • Exceptions in template

systems) 6.9.26 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeat- edly. 6.9. Release notes 231 Tornado Documentation

6.4 6.9.31 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeat- edly. tornado.template • Exceptions in template

6.4 6.9.31 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeat- edly. tornado.template • Exceptions in template

systems) 6.9.30 What’s new in Tornado 4.0.1 Aug 12, 2014 • The build will now fall back to pure-python mode if the C extension fails to build for any reason (previously it would fall back for some errors Idle IOLoops no longer wake up several times a second. • tornado.ioloop.PeriodicCallback no longer triggers duplicate callbacks when stopped and started repeat- edly. 6.9. Release notes 235 Tornado Documentation