"read_pdbstr" in an API-only function which reads a pdb file from a
Python string. This feature can be used to load or update
structures into PyMOL without involving any temporary files.
PYMOL API ONLY
cmd.read_pdbstr( string pdb-content, string object name
[ ,int state [ ,int finish [ ,int discrete ] ] ] )
"state" is a 1-based state index for the object.
"finish" is a flag (0 or 1) which can be set to zero to improve
performance when loading large numbers of objects, but you must
call "finish_object" when you are done.
"discrete" is a flag (0 or 1) which tells PyMOL that there will be
no overlapping atoms in the PDB files being loaded. "discrete"
objects save memory but can not be edited.