et'
Subject: RE: [PyMOL] detecting the existence of a selection
Tina,
Use the Python "in" operator
selection-name in cmd.get_names("selections")
PyMOL>print "foo" in cmd.get_names("selections")
False
PyMOL>select foo, all
Selector: selection
>if no atoms were picked, I would see the alarming error messages:
>Selector-Error: Unknown keyword or selection.
>Selector-Error: Malformed selection.
>( ( lb<--
>Is it possible to suppress them and still get the result?
Some kind of preliminary existence check might help. Something similar to
f
ailto:pymol-users-
> ad...@lists.sourceforge.net] On Behalf Of Tina Li
> Sent: Monday, December 01, 2003 11:50 AM
> To: pymol-users@lists.sourceforge.net
> Subject: [PyMOL] detecting the existence of a selection
>
> Hello,
>
> I wonder if there is a quick and simple way of
Hello,
I wonder if there is a quick and simple way of detecting whether a selection
exists without triggering any errors. e.g. to check if there are currently any
atoms picked (and collect the residue IDs if there is any), I do:
cmd.iterate("(lb)","stored.list.append((resi))")
if no atoms were p
