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 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? Thanks in advance! Tina