Added note regarding broken Python interpreter on macOS.

Author: lohedges

README.rst

@@ -57,6 +57,10 @@ need to add them when updating, e.g., for the development package:
 
     conda update -c conda-forge -c omnia -c michellab/label/dev biosimspace
 
+Note that on OS X you will need to run Python scripts with the ``sire_python``
+interpreter. This is due to an issue with the default Python interpreter that
+is installed via Conda. (This applies to all installation methods.)
+
 2. Using the prebuilt binaries
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

doc/source/install.rst

@@ -33,6 +33,10 @@ need to add them when updating, e.g., for the development package:
 
     conda update -c conda-forge -c omnia -c michellab/label/dev biosimspace
 
+Note that on OS X you will need to run Python scripts with the ``sire_python``
+interpreter. This is due to an issue with the default Python interpreter that
+is installed via Conda. (This applies to all installation methods.)
+
 Binary install
 ==============