On 20/03/15 02:57, Doug Basberg wrote:
Still, I would like to know if a 'hook' exists on exit from Python. I am
running Linux on a Raspberry Pi with Python 2.7.4 I also run an Apache
server on the Pi for monitor and control of power, HVAC, and security.
Your previous mail got you three options. I'd use all of them!
> > https://docs.python.org/3/library/atexit.html
>
> ... But that's only for normal program termination; sys.excepthook is
> for unexpected exits
def close_relay(e=None,v=None,t=None):
try:
if not relay_closed()
really_close_relay()
except:
really_close_relay()
import sys, atexit
atexit.register(close_relay)
sys.excepthook = close_relay
try:
main program here
finally:
close_relay()
--
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos
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