From c625d8327ee711284b186ec6c6ec1753e18941d1 Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Mon, 24 Jun 2013 15:21:28 +0000
Subject: [PATCH] [SCons] Fix an issue when using virtualenv

Virtualenv substitutes an old version of site.py that may not have the
getusersitepackages function. However, it appears that USER_SITE is set
correctly in these cases.
---
 SConstruct | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/SConstruct b/SConstruct
index 2bda736e9..849b4bd13 100644
--- a/SConstruct
+++ b/SConstruct
@@ -890,7 +890,10 @@ if env['python3_package'] in ('y', 'default'):
         script = '\n'.join(("from distutils.sysconfig import *",
                             "import site",
                             "print(get_python_version())",
-                            "print(site.getusersitepackages())"))
+                            "try:"
+                            "    print(site.getusersitepackages())",
+                            "except AttributeError:",
+                            "    print(site.USER_SITE)"))
         info = getCommandOutput(env['python3_cmd'], '-c', script)
         env['python3_version'], env['python3_usersitepackages'] = info.splitlines()
     except OSError: