diff -ru Python-2.7.9/Doc/distutils/setupscript.rst Python-2.7.9-patched//Doc/distutils/setupscript.rst
--- Python-2.7.9/Doc/distutils/setupscript.rst	2014-12-10 07:59:24.000000000 -0800
+++ Python-2.7.9-patched//Doc/distutils/setupscript.rst	2015-11-09 22:01:52.183908157 -0800
@@ -528,9 +528,8 @@
 
 Each (*directory*, *files*) pair in the sequence specifies the installation
 directory and the files to install there.  If *directory* is a relative path, it
-is interpreted relative to the installation prefix (Python's ``sys.prefix`` for
-pure-Python packages, ``sys.exec_prefix`` for packages that contain extension
-modules).  Each file name in *files* is interpreted relative to the
+is interpreted relative to the installation prefix (Python's ``sys.prefix``).
+Each file name in *files* is interpreted relative to the
 :file:`setup.py` script at the top of the package source distribution.  No
 directory information from *files* is used to determine the final location of
 the installed file; only the name of the file is used.