Hi Pedro Lacerda,
Here is a link to a script I wrote which adds a command which does what you
ask: https://gist.github.com/ColeFrench/6f68fa5f04a67bb6234f10c25debb865.
To use it, download the file to the directory where you run PyMOL from,
then open PyMOL and run run select_with_filter.py.
For your examples, the commands would be
cmd.select_with_filter(predicate=lambda
s: len(cmd.get_chains(s)) < 2) and cmd.select_with_filter(predicate=lambda
s: cmd.get_fastastr(s) < 2).
Commands which can be simply run are a convenience which allows you to type
less (e.g., select chain A instead of cmd.select('chain A')). Some commands
require different arguments and can only be run the longer way, such as the
one I wrote which takes a function as an argument.
Hope this helps,
Cole
On Fri, Aug 2, 2019 at 11:45 AM Pedro Lacerda <pslace...@gmail.com> wrote:
> Hi PyMOL users,
>
> It there any way to enhance the selecion algebra with functions? For
> instance:
>
> select len(get_chains(*)) < 2
>>
>
> Or even:
>
> select cmd.get_fastastr(*) < 2
>>
>
>
> By the way, why some commands we can simply run (like get_chains) and
> others are different (like cmd.get_fastastr())?
>
> --
> Pedro Sousa Lacerda
>
>
> *Laboratório de Bioinformática e Modelagem Molecular*
> *Faculdade de Farmácia / UFBA*
>
> *@pslacerda*
>
> *+55 71 9 9981-1856*
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