Python without a tty

[Hans Mulder]

On 3/10/11 08:10:57, Hegedüs, Ervin wrote:
> hello,
>
> On Mon, Oct 03, 2011 at 04:37:43AM +0000, Steven D'Aprano wrote:
>>
>> I wanted to ensure that it would do the right thing when run without a tty,
>> such as from a cron job.
>
> If you fork() your process, then it will also loose the tty...

Errhm, I suggest you check again.  This cannot be true.

> import os
> import sys
>
>
> try:
>      pid = os.fork()
>      if pid>  0:
>          sys.exit(0)
> except OSError, e:
>      sys.exit(1)
>
> os.chdir("/")
> os.setsid()
> os.umask(0)

It is os.setsid() that makes you lose the tty.


Hope this helps,

-- HansM