[Tutor] Is there a 'hook' to capture all exits from a python program?

[Steven D'Aprano]

On Wed, Mar 18, 2015 at 10:59:35PM +0000, Alan Gauld wrote:
> On 18/03/15 18:28, Doug Basberg wrote:
> >I do real-time controls programming and I control a relay in a python
> >program that must be turned off before the program ends.
> 
> You don't say what your environment is but you should be aware
> that Python is not really a suitable tool for real time
> programming, especially if it safety critical. The same applies
> to most(all?) scripting languages and especially if running
> on a time sharing OS like Unix or windows.

I wouldn't want to use Python to control the critical parts of a nuclear 
reactor or a plane's autopilot, but people use it to control mechanical 
devices in near-real-time. There's an old-timer, Gene Heskett, on the 
comp.lang.python newsgroup who (I think) uses Python to drive some sort 
of circuit board mechanical etching machine.

Using Python to control (say) an Arduino is pretty popular too.

But I guess you'll rightly say these things don't count as "real-time".



-- 
Steve