Editing MAC Install (section)

== Open-Source PyMOL ==

=== Package managers ===

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.

<source lang="bash">
# Homebrew (recommended)
brew install brewsci/bio/pymol

# Fink
fink install pymol-py27

# MacPorts
sudo port install pymol
</source>

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

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

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_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).

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:

<source lang="bash">
python setup.py --osx-frameworks install
</source>

=== 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].

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'