Re: zenmap as root error

2008/4/1, Joćo Medeiros <ignotus21_at_gmail.com>:
> On Tue, Apr 1, 2008 at 11:21 PM, Guilherme Polo <ggpolo_at_gmail.com> wrote:
> > 2008/4/1, Joćo Medeiros <ignotus21_at_gmail.com>:
> >
> > > On Tue, Apr 1, 2008 at 10:52 PM, Guilherme Polo <ggpolo_at_gmail.com> wrote:
> > > > But, for PyGtk 2.8 and earlier I would suggest doing this in a
> > > > different manner (and much simpler and less error-prone):
> > > >
> > > > try:
> > > > import gtk
> > > > except ImportError, e:
> > > > print e
> > > >
> > > > For PyGtk 2.10 and newer, ImportError is actually a warning so the
> > > > code changes a bit:
> > > >
> > > > import warnings
> > > > warnings.filterwarnings('error', module='gtk')
> > > > try:
> > > > import gtk
> > > > except Warning, w:
> > > > print w
> > > > warnings.resetwarnings()
> > > >
> > >
> > >
> > > I think that just display the an eventually warning is not enough. We
> > > have to leave segfault.
> >
> > If this Warning happens, it implies the gtk engine couldn't start and
> > the app wouldn't run anyway (or could try and segfault). Also, you
> > could just call exit after your print that message, it was just a
> > correct template on how to proceed when importing gtk fails.
>
>
> Hum, sorry if I'm wrong, but if I just call exit in a warning
> exception the programing will exit with any warning. Maybe some
> warning does not cause segfault.
>

You could then alternatively catch ImportWarning, but this one I
haven't tested. The problem with your "solution" was already pointed
by Fyodor, setting a wrong DISPLAY will bypass your solution and the
segfault will still happen.

>
> >
> > > By this way we have to check if the waring is
> > > associated to display too.
> >
> > Why ? Just checking for DISPLAY, like you proposed, doesn't solve this.
>
>
> Because of what I say above I think we have to check display
> condition. Checking the if DISPLAY var is set and the system is
> *nix-like the problem is solved. I have just tested in my linux
> machine few minutes ago.
>

Gtk already checks for dispaly.

> Att, Joćo Medeiros.
>

-- 
-- Guilherme H. Polo Goncalves
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