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``tornado.util`` --- General-purpose utilities
==============================================
.. testsetup::
from tornado.util import *
.. automodule:: tornado.util
:members:
.. class:: TimeoutError
Exception raised by `.gen.with_timeout` and `.IOLoop.run_sync`.
.. versionchanged:: 5.0
Unified ``tornado.gen.TimeoutError`` and
``tornado.ioloop.TimeoutError`` as ``tornado.util.TimeoutError``.
Both former names remain as aliases.
.. versionchanged:: 6.2
``tornado.util.TimeoutError`` is an alias to :py:class:`asyncio.TimeoutError`
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