Hi Yang,
Very good questions. I don't think that it's documented anywhere. Reference
counting is maintained, I fixed that up as best as I could before the PyMOL 2.0
release (in PyMOL 1.x it leaks references). Looks like there is no way to
introspect whether start() has been called already.
Cheers,
Thomas
> On Apr 24, 2018, at 6:16 PM, Yang Su <s...@crystal.harvard.edu> wrote:
>
> Thanks Thomas. The code snippet works. Does start(), stop() maintain
> reference counting? Is there a way to know if it's already started/stopped?
> Is this API documented somewhere?
>
> Thanks,
> Yang
>
>
> On Mon, Apr 23, 2018 at 1:15 PM, Thomas Holder
> <thomas.hol...@schrodinger.com> wrote:
> 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 <s...@crystal.harvard.edu> 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.
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