Alain Ketterlin wrote:

> Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> writes:
> 
>> I have a Python script which I would like to test without a tty attached
>> to the process. I could run it as a cron job, but is there an easier way?
>>
>> I am running Linux.
> 
> Isn't os.setsid() what you're looking for? It makes the calling process
> have no controlling terminal. There's also a user command called setsid
> that should have the same effect.

It doesn't appear so to me.

[steve@sylar ~]$ tty
/dev/pts/16
[steve@sylar ~]$ setsid tty
/dev/pts/16

[steve@sylar ~]$ python -c "import sys,os; print os.isatty(sys.stdout.fileno())"
True
[steve@sylar ~]$ setsid python -c "import sys,os; print 
os.isatty(sys.stdout.fileno())"
True


If I run the same Python command (without the setsid) as a cron job, I 
get False emailed to me. That's the effect I'm looking for.



-- 
Steven

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