v6.0.3

What's new in Tornado 6.0.3

Jun 22, 2019
------------

Bug fixes
~~~~~~~~~

- `.gen.with_timeout` always treats ``asyncio.CancelledError`` as a
  ``quiet_exception`` (this improves compatibility with Python 3.8,
  which changed ``CancelledError`` to a ``BaseException``).
- ``IOStream`` now checks for closed streams earlier, avoiding
  spurious logged errors in some situations (mainly with websockets).