From 684262e945f67498fb7ab460578249ed7bd11188 Mon Sep 17 00:00:00 2001
From: emccorkle <Evan.McCorkle@ara.com>
Date: Thu, 26 Oct 2017 10:59:55 -0400
Subject: [PATCH] [SCons] Fix Python 3.6 compatibility

The build was failing with:
  TypeError: 'mappingproxy' object does not support item assignment
---
 SConstruct | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/SConstruct b/SConstruct
index 00d2e82a7..32dc1967c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -310,7 +310,7 @@ defaults.python_prefix = '$prefix' if env['OS'] != 'Windows' else ''
 # Transform lists into strings to keep cantera.conf clean
 for key,value in defaults.__dict__.items():
     if isinstance(value, (list, tuple)):
-        defaults.__dict__[key] = ' '.join(value)
+        setattr(defaults, key, ' '.join(value))
 
 # **************************************
 # *** Read user-configurable options ***