Re: [PyMOL] Multiple PyMOL Instances in Python Script

[Thomas H. <tho...@sc...>]

Hi Yang,

Yes it's possible to have independent instances. The API has actually been around for a long time. For some reason it was never widely adopted and thus is not very thoroughly tested. Please report any bugs you encounter.

Example:

import pymol2
p = pymol2.PyMOL()
p.start()
p.cmd.fragment('ala')
p.cmd.show_as('sticks')
p.cmd.zoom()
p.cmd.png('/tmp/ala.png', 1000, 800, dpi=150, ray=1)
p.stop()

Cheers,
  Thomas

> On Apr 19, 2018, at 3:33 PM, Yang Su <su...@cr...> wrote:
> 
> Hi,
> 
> Is it possible to start multiple independent pymol backend processes in a python script/jupyter notebook? Now with PyMOL 2.1 I can 'import pymol' and call a pymol.cmd function to start a backend process, but this is kind of 'global'. I'm looking for a way to manage multiple PyMOL sessions in parallel, each manipulating its own structures.
> 
> Thanks,
> Yang

--
Thomas Holder
PyMOL Principal Developer
Schrödinger, Inc.