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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
New Setup PyMOL-open-source-windows-setup v3.1 has been released on January 20, 2025. More information under Windows Install.
New Plugin PySSA aims to combine PyMOL and ColabFold to enable the prediction and analysis of 3D protein structures for the scientific end-user. v1.0 has been released on July 10, 2024.
Official Release PyMOL v3.0 has been released on March 12, 2024.
New Plugin CavitOmiX calculate Catalophore™ cavities, predict protein structures with OpenFold by NVIDIA-BioNeMo, ESMFold and retrieve Alphafold models
Official Release PyMOL v2.5 has been released on May 10, 2021.
Python 3 New Python 3 compatibility guide for scripts and plugins
POSF New PyMOL fellowship announced for 2022-2023
Tutorial Plugins Tutorial updated for PyQt5
New Plugin PICv is a new plugin for clustering protein-protein interactions and visualization with available data from PDBe
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...

The recommended way to run PyMOL-Python scripts is by using PyMOL as the interpreter. This is supported by all versions of PyMOL, including the pre-compiled bundles provided by Schrödinger.

Example from a shell:

shell> pymol -cq script.py

With arguments (sys.argv becomes ["script.py", "foo", "bar"]):

shell> pymol -cq script.py -- foo bar

Example from a running PyMOL instance:

PyMOL> run script.py

For advanced users, the following PyMOL versions also allow to run PyMOL from an existing Python process:

  • PyMOL 2.0 based on Anaconda (using Anaconda's python, which is included in bundles provided by Schrödinger)
  • Open-Source PyMOL
  • Schrödinger-provided "Mac alternative X11-only build" of the 1.8.x series

After importing the pymol module, PyMOL's event loop has to be started with a call to pymol.finish_launching() (not supported on macOS).

Usage

With PyMOL 2.1, calling any ..→

A Random PyMOL-generated Cover. See Covers.