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| -rw-r--r-- | Doc/library/asyncio-exceptions.rst | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/Doc/library/asyncio-exceptions.rst b/Doc/library/asyncio-exceptions.rst index e49577a203..b1e6ecfda1 100644 --- a/Doc/library/asyncio-exceptions.rst +++ b/Doc/library/asyncio-exceptions.rst @@ -25,26 +25,9 @@ Exceptions when asyncio Tasks are cancelled. In almost all situations the exception must be re-raised. - .. important:: - - This exception is a subclass of :exc:`Exception`, so it can be - accidentally suppressed by an overly broad ``try..except`` block:: - - try: - await operation - except Exception: - # The cancellation is broken because the *except* block - # suppresses the CancelledError exception. - log.log('an error has occurred') - - Instead, the following pattern should be used:: + .. versionchanged:: 3.8 - try: - await operation - except asyncio.CancelledError: - raise - except Exception: - log.log('an error has occurred') + :exc:`CancelledError` is now a subclass of :class:`BaseException`. .. exception:: InvalidStateError |