From 3df5d0f036f8ff77672bd1d4fd473f5ce816ac6c Mon Sep 17 00:00:00 2001
From: Andrew Svetlov <andrew.svetlov@gmail.com>
Date: Wed, 16 Jan 2019 09:56:29 +0200
Subject: [PATCH] Dont log exception traceback when TimeoutError is occurred in
 asyncio transports

---
 Lib/asyncio/base_events.py                                     | 3 ++-
 .../next/Library/2019-01-16-09-55-05.bpo-34148.J5A1QC.rst      | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Library/2019-01-16-09-55-05.bpo-34148.J5A1QC.rst

diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index cec47ce67f3824..ea828c177285e9 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -59,7 +59,8 @@
 # Exceptions which must not call the exception handler in fatal error
 # methods (_fatal_error())
 _FATAL_ERROR_IGNORE = (BrokenPipeError,
-                       ConnectionResetError, ConnectionAbortedError)
+                       ConnectionResetError, ConnectionAbortedError,
+                       TimeoutError)
 
 if ssl is not None:
     _FATAL_ERROR_IGNORE = _FATAL_ERROR_IGNORE + (ssl.SSLCertVerificationError,)
diff --git a/Misc/NEWS.d/next/Library/2019-01-16-09-55-05.bpo-34148.J5A1QC.rst b/Misc/NEWS.d/next/Library/2019-01-16-09-55-05.bpo-34148.J5A1QC.rst
new file mode 100644
index 00000000000000..463fe459857d87
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2019-01-16-09-55-05.bpo-34148.J5A1QC.rst
@@ -0,0 +1,2 @@
+Don't log exception traceback when :exc:`TimeoutError` is occurred in
+asyncio transport.