A better way to get packages built against a homebrew-build Python to put their scripts where we want them. Mimics the approach used by the system python.

brew_python_install_scripts.diff

diff --git a/Lib/distutils/command/install.py b/Lib/distutils/command/install.py
index f1f3bd5..a094030 100644
--- a/Lib/distutils/command/install.py
+++ b/Lib/distutils/command/install.py
@@ -12,7 +12,7 @@ import sys, os, string
 from types import *
 from distutils.core import Command
 from distutils.debug import DEBUG
-from distutils.sysconfig import get_config_vars
+from distutils.sysconfig import get_config_vars, get_config_var
 from distutils.errors import DistutilsPlatformError
 from distutils.file_util import write_file
 from distutils.util import convert_path, subst_vars, change_root
@@ -331,6 +331,18 @@ class install (Command):
 
         self.dump_dirs("post-expand_dirs()")
 
+        # This patch is modeled after the one in the system Python
+        if sys.platform == "darwin":
+            brewsite = get_config_var('BREWSITEDIR')
+            if brewsite: # we only activate this later in the installation
+                sitepkg = os.path.join(sys.prefix, 'lib', 'python' + sys.version[:3], 'site-packages')
+                if self.install_platlib == sitepkg:
+                    self.install_platlib = brewsite
+                if self.install_purelib == sitepkg:
+                    self.install_purelib = brewsite
+            if self.install_scripts == os.path.join(sys.prefix, 'bin'):
+                self.install_scripts = get_config_var('BINDIR')
+
         # Create directories in the home dir:
         if self.user:
             self.create_home_path()