cpython: 8753a3be4a3c (original) (raw)

Mercurial > cpython

changeset 82212:8753a3be4a3c 3.2

Issue #17208: add a note about the termination behaviour of daemon threads. [#17208]

Antoine Pitrou solipsis@pitrou.net
date	Fri, 15 Feb 2013 21:27:18 +0100
parents	efe489f87881
children	917ae89e59ce 1d4849f9e37d
files	Doc/library/threading.rst
diffstat	1 files changed, 6 insertions(+), 0 deletions(-)[+] [-] Doc/library/threading.rst 6

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--- a/Doc/library/threading.rst +++ b/Doc/library/threading.rst @@ -244,6 +244,12 @@ is that the entire Python program exits The initial value is inherited from the creating thread. The flag can be set through the :attr:~Thread.daemon property. +.. note::

Daemon threads are abruptly stopped at shutdown. Their resources (such
as open files, database transactions, etc.) may not be released properly.
If you want your threads to stop gracefully, make them non-daemonic and
use a suitable signalling mechanism such as an :class:Event. +

There is a "main thread" object; this corresponds to the initial thread of control in the Python program. It is not a daemon thread.