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[[Category:Installation|Mac]]
This page describes how to install PyMOL on Mac OS X.
http://images.apple.com/powermac/images/solutionsscience20050427.jpg


__TOC__
== Incentive PyMOL ==


=Installing MacPyMOL=
[http://www.schrodinger.com Schrödinger] provides pre-compiled PyMOL to paying sponsors. The bundle also includes ready-to-use [[APBS]], [[morph|RigiMOL]], an MPEG encoder for movie export, and a small molecule energy minimization engine.
http://delsci.com/macpymol/macpymol350.jpg


===Essentials===
Download: https://pymol.org/


The [http://delsci.com/macpymol/ download] is about as straightforward as it gets, and you can install it wherever it makes you happy. You need a 3 button mouse (clickable scroll wheel = middle button). Apple has finally come to its senses and designed a proper, ergonomically pleasant, [http://www.apple.com/mightymouse/ scrollbutton mouse] that works well with pymol and permits horizontal scrolling.  Most other mice will also work well.
Installation: Drag '''PyMOL.app''' on the '''/Applications''' shortcut. (In principle, you could drag it into any Finder window and run it from there, it doesn’t have to live in /Applications).


One word of warning: '''Do not install 3rd party drivers''' for multi-button mice if you can avoid it.  These often mess with the mapping of the middle button or have other horrific side effects.  Fortunately, with OS X, you should not need to.
Uninstallation: Move '''/Applications/PyMOL.app''' to Trash


I ([[User:Wgscott|Bill Scott]]) wrote a [http://xanana.ucsc.edu/Library/init/zsh/local-functions/xtal/pymol pymol] shell script (and zsh function) to invoke this on the command line. It uses mdfind to find the executable that lives in MacPyMOL.app/Contents/MacOS/PyMOL and pass arguments to it.
=== Launching from Command Line ===


===Extras===
The unix executable resides at '''/Applications/PyMOL.app/Contents/MacOS/PyMOL'''


You don't need any of these to use MacPyMOL.  But you didn't really '''need''' a Mac either.  Face it: You need these.
=== X11 Hybrid ===


====Mighty Mouse====
''Applies to PyMOL 1.x, not to PyMOL 2.x''


http://images.apple.com/mightymouse/images/index360scroll220050802.gif
MacPyMOL can optionally run with the same two-window GUI which PyMOL uses on Windows and Linux. This GUI has some additional features, like the [[Plugins|Plugin]] menu and the [[Builder]].


A 3-button mouse is essential.  [http://www.apple.com/mightymouse/ Apple's Mighty Mouse] is an extra treat.
Requires [http://xquartz.macosforge.org/ XQuartz].


====PowerMate Dial====
There are two ways to launch the X11 interface:
# Rename or copy/duplicate '''/Applications/MacPyMOL.app''' to '''/Applications/MacPyMOLX11Hybrid.app''' or to '''/Applications/PyMOLX11Hybrid.app'''
# Launch the unix executable with the '''-m''' flag: '''/Applications/MacPyMOL.app/Contents/MacOS/MacPyMOL -m'''


http://www.griffintechnology.com/images/products/prod_powermate_a.jpg
=== Stereo on Second Monitor ===
The trick to getting MacPyMOL to work in stereo on the second monitor is to force it to initially open on that display by providing an appropriate "-X #" (and perhaps -Y #) option on launch.  That way the OpenGL context will be created with stereo support.
<source lang="python">
./MacPyMOL.app/Contents/MacOS/MacPyMOL -X -1000
./MacPyMOL.app/Contents/MacOS/MacPyMOL -X -1000 -Y 100
</source>


The [http://www.chemistry.ucsc.edu/~wgscott/xtal/powermate_pymol_osx.html PowerMate dial works nicely with pymol].
'''Source:''' [https://sourceforge.net/p/pymol/mailman/message/11671952/ Warren DeLano; PyMOL Users Archive]


====Stereo====
== Open-Source PyMOL ==


http://images.apple.com/powermac/images/graphicspymol20051018.jpg
=== Package managers ===


The [http://www.apple.com/powermac/upgrade.html latest Macs] finally support [http://www.apple.com/powermac/graphics.html stereo in a window].
Open-Source PyMOL is available [https://github.com/schrodinger/pymol-open-source/blob/master/LICENSE free of charge] and may be readily installed via the [http://brew.sh/ Homebrew] (recommended), [https://www.macports.org/ MacPorts], or [http://www.finkproject.org/ Fink] package managers.


=Installing X-windows based pymol on Mac OS X=
<source lang="bash">
# Homebrew (recommended)
brew install brewsci/bio/pymol


===Why would you want to do this?===
# Fink
fink install pymol-py27


#You want to run a [http://www.oreilly.com/openbook/freedom/ free], guilt-free, open-source version of pymol
# MacPorts
#You just happen to prefer the [http://wiki.python.org/moin/TkInter tkinter] menu
sudo port install pymol
#You want to use [http://pymol.sourceforge.net/plugins.html plugins], for example, the [http://www-personal.umich.edu/~mlerner/PyMOL/  apbs plugin] for free grasp-like electrostatic calculations.
</source>


----
You may need to make sure that the dependencies are installed with the required flags, e.g. for MacPorts:


===Simplest Installation===
<source lang="bash">
# MacPorts
sudo port install tcl -corefoundation
sudo port install tk -quartz
</source>


====Install pymol with Fink====
If PyMOL complains that it wasn't able to find X11, try starting xquartz first, then run pymol from the console.
http://pdb.finkproject.org/img/mlogo.png


By far the simplest way to install the X-windows based version of pymol on OS X is by using the [http://fink.sourceforge.net/ fink package management system].  To compile it, all you need to do is issue the command
=== Install from Source ===


fink install pymol-py24
If you want the latest PyMOL code (warning: might include experimental changes), then follow the [[Linux_Install#Install_from_source|Linux installation instructions]]. You will need an environment like Fink, MacPorts or Homebrew to install the dependencies. Make sure you use the appropriate python interpreter (e.g. '''/sw/bin/python2.7''' when using Fink).
(This will install python2.4 in fink, along with an X-windows based tkinter. There are also versions that permit you to install pymol to interact with python2.3 and even python2.2.  Fink uses its own unix-type python installation, but you can trick pymol into using the aqua framework to get a prettier GUI after the fact.)


The [http://pdb.finkproject.org/pdb/package.php/pymol-py24 fink pymol package] currently exists in the unstable branch of fink, so you will either have to activate the unstable branch or make the following symbolic links:
To run PyMOL with a native PyQt library (linked against macOS OpenGL framework, not against XQuartz), it needs to be built with the <code>--osx-frameworks</code> option:


sudo ln -s /sw/fink/dists/unstable/main/finkinfo/sci/pymol-py.* /sw/fink/dists/local/main/finkinfo/.
<source lang="bash">
python setup.py --osx-frameworks install
You might need to create the latter directory if it doesn't already exist, i.e., issue the command
</source>


sudo mkdir -p /sw/fink/dists/local/main/finkinfo
=== Install APBS with Fink ===


To use the electrostatics plugin, you will need [http://apbs.sourceforge.net/ APBS] and its dependencies.  These are also available as Fink packages, and include [http://pdb.finkproject.org/pdb/package.php/apbs APBS], [http://pdb.finkproject.org/pdb/package.php/maloc maloc] and [http://pdb.finkproject.org/pdb/package.php/pdb2pqr pdb2pqr]. If you have multiple processors available, you might wish to install the [http://pdb.finkproject.org/pdb/package.php/apbs-mpi-openmpi MPI version of APBS].


I ([[User:wgscott|wgscott]]) have put a whole lot of further information on how to use fink to install crystallographic software on my own [http://xanana.ucsc.edu/~wgscott/xtal/wiki/index.php/Main_Page wiki] and [http://chemistry.ucsc.edu/~wgscott/xtal/ website], including instructions on [http://xanana.ucsc.edu/~wgscott/xtal/wiki/index.php/Getting_your_fink_installation_to_use_packages_that_I_have_pre-compiled how to install precompiled binary packages using fink].
Issuing the command


The [http://pdb.finkproject.org/pdb/search.php?summary=pymol fink pymol package] is currently maintained by Jack Howarth.
fink install apbs


====Install APBS and friends with fink====
will install apbs and its required dependencies for you.  The fink pymol package is already preconfigured to do the right thing to use apbs as a plugin.


To use the electrostatics plugin, you will need [http://apbs.sourceforge.net/ APBS] and its dependencies.  These are also available as fink packages, and include [http://pdb.finkproject.org/pdb/package.php/apbs apbs], [http://pdb.finkproject.org/pdb/package.php/maloc maloc] and [http://pdb.finkproject.org/pdb/package.php/pdb2pqr pdb2pqr].  If you have multiple processors available, you might wish to install the [http://pdb.finkproject.org/pdb/package.php/apbs-mpi mpi version of apbs].
=== Stereo issues ===
Some older Macs seem to crash with stereo graphics. If this happens to you, a workaround is to launch PyMOL explicitly in Mono mode with `pymol -M`. You can also set up an alias in your ~/.profile:


Issuing the command
alias pymol='pymol -M'


fink install apbs
== See Also ==


will install apbs and its required dependencies for you. The fink pymol package is already preconfigured to do the right thing to use apbs as a plugin.
* [[pymolrc]]
* [[Linux Install]]
* [[Windows Install]]
* [[MovieSchool_6#Exporting_your_Movie|FreeMOL installation for MPEG movie export]]
* [[User:Wgscott|Bill Scott’s]] [[MacOSX-specific .pymolrc file]] and his crystallographic software [http://xanana.ucsc.edu/~wgscott/xtal/wiki/index.php/Main_Page wiki] and [http://chemistry.ucsc.edu/~wgscott/xtal/ website], including instructions on [http://xanana.ucsc.edu/~wgscott/xtal/wiki/index.php/Getting_your_fink_installation_to_use_packages_that_I_have_pre-compiled how to install precompiled binary packages using fink].
* [[Launching_PyMOL#MacOS_X]]


----
[[Category:Installation|Mac]]
===Eye-Candy Tweaks===
[[Category:Nucleic_Acids|MAC Install]]
[[Category:Technical Issues|MAC Install]]
[[Category:Mac|MAC Install]]

Latest revision as of 12:05, 8 October 2018

This page describes how to install PyMOL on Mac OS X.

Incentive PyMOL

Schrödinger provides pre-compiled PyMOL to paying sponsors. The bundle also includes ready-to-use APBS, RigiMOL, an MPEG encoder for movie export, and a small molecule energy minimization engine.

Download: https://pymol.org/

Installation: Drag PyMOL.app on the /Applications shortcut. (In principle, you could drag it into any Finder window and run it from there, it doesn’t have to live in /Applications).

Uninstallation: Move /Applications/PyMOL.app to Trash

Launching from Command Line

The unix executable resides at /Applications/PyMOL.app/Contents/MacOS/PyMOL

X11 Hybrid

Applies to PyMOL 1.x, not to PyMOL 2.x

MacPyMOL can optionally run with the same two-window GUI which PyMOL uses on Windows and Linux. This GUI has some additional features, like the Plugin menu and the Builder.

Requires XQuartz.

There are two ways to launch the X11 interface:

  1. Rename or copy/duplicate /Applications/MacPyMOL.app to /Applications/MacPyMOLX11Hybrid.app or to /Applications/PyMOLX11Hybrid.app
  2. Launch the unix executable with the -m flag: /Applications/MacPyMOL.app/Contents/MacOS/MacPyMOL -m

Stereo on Second Monitor

The trick to getting MacPyMOL to work in stereo on the second monitor is to force it to initially open on that display by providing an appropriate "-X #" (and perhaps -Y #) option on launch. That way the OpenGL context will be created with stereo support. 

./MacPyMOL.app/Contents/MacOS/MacPyMOL -X -1000
./MacPyMOL.app/Contents/MacOS/MacPyMOL -X -1000 -Y 100

Source: Warren DeLano; PyMOL Users Archive

Open-Source PyMOL

Package managers

Open-Source PyMOL is available free of charge and may be readily installed via the Homebrew (recommended), MacPorts, or Fink package managers. 

# Homebrew (recommended)
brew install brewsci/bio/pymol

# Fink
fink install pymol-py27

# MacPorts
sudo port install pymol

You may need to make sure that the dependencies are installed with the required flags, e.g. for MacPorts: 

# MacPorts
sudo port install tcl -corefoundation
sudo port install tk -quartz

If PyMOL complains that it wasn't able to find X11, try starting xquartz first, then run pymol from the console.

Install from Source

If you want the latest PyMOL code (warning: might include experimental changes), then follow the Linux installation instructions. You will need an environment like Fink, MacPorts or Homebrew to install the dependencies. Make sure you use the appropriate python interpreter (e.g. /sw/bin/python2.7 when using Fink).

To run PyMOL with a native PyQt library (linked against macOS OpenGL framework, not against XQuartz), it needs to be built with the --osx-frameworks option: 

python setup.py --osx-frameworks install

Install APBS with Fink

To use the electrostatics plugin, you will need APBS and its dependencies. These are also available as Fink packages, and include APBS, maloc and pdb2pqr. If you have multiple processors available, you might wish to install the MPI version of APBS.

Issuing the command 

fink install apbs

will install apbs and its required dependencies for you. The fink pymol package is already preconfigured to do the right thing to use apbs as a plugin.

Stereo issues

Some older Macs seem to crash with stereo graphics. If this happens to you, a workaround is to launch PyMOL explicitly in Mono mode with `pymol -M`. You can also set up an alias in your ~/.profile: 

alias pymol='pymol -M'

See Also

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