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Welcome to the PyMOL Wiki!
The community-run support site for the PyMOL molecular viewer.
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Quick Links
Tutorials Table of Contents Commands
Script Library Plugins FAQ
Gallery | Covers PyMOL Cheat Sheet (PDF) Getting Help
News & Updates
Python 3 New Python 3 compatibility guide for scripts and plugins
Official Release PyMOL v2.3 has been released on February 11, 2019.
POSF New PyMOL fellows announced for 2018-2019
Tutorial Plugins Tutorial updated for PyQt5
New Plugin ProBiS H2O is a new plugin for identification of conserved waters in protein structures.
Selection keywords New polymer.protein and polymer.nucleic selection keywords. Thanks everyone who participated in the poll!
Plugin Update MOLE 2.5 is an updated version of channel analysis software in PyMOL
New Script dssr_block is a wrapper for DSSR (3dna) and creates block-shaped nucleic acid cartoons
Older News See Older News.
Did you know...

Read Molstr

read_molstr reads an MDL MOL format file as a string


cmd.read_molstr( string molstr, string name, int state=0, \
  int finish=1, int discrete=1 )


  • state is a 1-based state index for the object, or 0 to append.
  • 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 file being loaded. discrete objects save memory but can not be edited.
A Random PyMOL-generated Cover. See Covers.