Hi Chris, I don't know how you opened your file, but if you opened it with chimera.openModels.open() then the return value is a list of models from that file, so... models = chimera.openModels.open("myfile.mol2") for i in range(len(models)): ... though perhaps more direct would be: models = chimera.openModels.open("myfile.mol2") for m in models: m.display = False for i, m in enumerate(models): ... setup stuff m.display = True ... more stuff m.display = False --Eric Eric Pettersen UCSF Computer Graphics Lab http://www.cgl.ucsf.edu On Jun 29, 2009, at 5:11 PM, cdlau@ucsd.edu wrote:

Hi,

I am currently using the modeldisp command on the command line to hide and view various molecules within a single mol2 file. I was wondering how I would be able to access how many total molecules there were in a single mol2 file. For example, if the mol2 file is loaded into model 0, I would be using

modeldisp #0.$i

etc in a large loop where $i is changing. What command can I use to return a value for the total number of molecules in the mol2 file so I can have this be the upper limit of $i?

Thanks for your help,

Chris _______________________________________________ Chimera-users mailing list Chimera-users@cgl.ucsf.edu http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users