[Newbie] How to wait for asyncronous input

Steven D'Aprano steve+comp.lang.python at pearwood.info
Sat Aug 11 11:56:30 CEST 2012

On Sat, 11 Aug 2012 11:24:48 +0200, Hans Mulder wrote:

> On 11/08/12 09:07:51, pozz wrote:

>> When the main thread wants to close the serial port, the receiving
>> thread can be killed
> How would you do that?
> IFAIK, there is no way in Python to kill a thread.


> The usual work-around is to have a global flag that you'd set to True
> when the main thread wants to close the port.  The read would have a
> timeout of 1 second of so, so that the reading thread is woken up every
> second, so it can check that flag and wind up when the flag is set.

It doesn't need to be a global flag. You can make the flag an attribute 
of the thread, and then have the thread check self.flag.


More information about the Python-list mailing list