Re: Struggling with python-daemon and subprocess module to work together

References	<CAK32T6WO=U-MUW01OEUtmxSv5bsxgQg+0P5k_ReaMaTjPQ6aBQ@mail.gmail.com>
Date	2014-10-21 16:21 -0700
Subject	Re: Struggling with python-daemon and subprocess module to work together
From	Dan Stromberg <drsalists@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.15050.1413934126.18130.python-list@python.org> (permalink)

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On Mon, Oct 20, 2014 at 2:16 AM, Praveen Kumar
<kumarpraveen.nitdgp@gmail.com> wrote:
> I am writing a very basic server side application[0] which get data
> from a client and create a virtual machine using provided data and
> also tells client about what's going on during *virt-install* command
> execution. Previously this basic server is executed using *openvt* but
> I thought it would be nice to have a daemon process for it and used
> python-daemon.
>
> Issue I am facing is after some time server will stop sending data to
> client which suppose to happen in #120 and get error message "Cannot
> run interactive console without a controlling TTY" . I am not able to
> figure out issue is occurred due to module or I missed something
> during daemon initialization.

I believe you either want a pty, to make your interactive application
believe it's on a tty, or a redesign.

Here's some Python pty code:
http://stromberg.dnsalias.org/~strombrg/pypty/

I imagine pexpect might help too, though I tend to favor going
directly to a pty.

HTH

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Re: Struggling with python-daemon and subprocess module to work together Dan Stromberg <drsalists@gmail.com> - 2014-10-21 16:21 -0700

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