Message 281664 - Python tracker

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Author	Jan Velecký
Recipients	Jan Velecký, docs@python
Date	2016-11-24.22:25:57
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<[email protected]>
In-reply-to

Content
Hello, documentation (https://docs.python.org/2/library/signal.html) states, that Python by default installs SIGINT handler which cause KeyboardInterrupt. This is not true everytime according to implementation. "Python installs a small number of signal handlers by default: SIGPIPE ... and SIGINT is translated into a KeyboardInterrupt exception." It should also mention this "SIGINT is installed only, when default handler is set at startup.". Because user can run python script from non-interative shell as background task and SIGINT handler is not installed, regardless although user does not change Python default behaviour. Related SO: http://stackoverflow.com/questions/40775054/capturing-sigint-using-keyboardinterrupt-exception-works-in-terminal-not-in-scr/40785230?noredirect=1

Hello,
documentation (https://docs.python.org/2/library/signal.html) states, that Python by default installs SIGINT handler which cause KeyboardInterrupt. This is not true everytime according to implementation.
"Python installs a small number of signal handlers by default: SIGPIPE ... and SIGINT is translated into a KeyboardInterrupt exception."
It should also mention this "SIGINT is installed only, when default handler is set at startup.". Because user can run python script from non-interative shell as background task and SIGINT handler is not installed, regardless although user does not change Python default behaviour.

Related SO:
http://stackoverflow.com/questions/40775054/capturing-sigint-using-keyboardinterrupt-exception-works-in-terminal-not-in-scr/40785230?noredirect=1

History
Date	User	Action	Args
2016-11-24 22:25:57	Jan Velecký	set	recipients: + Jan Velecký, docs@python
2016-11-24 22:25:57	Jan Velecký	set	messageid: <[email protected]>
2016-11-24 22:25:57	Jan Velecký	link	issue28795 messages
2016-11-24 22:25:57	Jan Velecký	create