Add platform/external/python/six
diff --git a/default.xml b/default.xml
index aedc9b4..956736f 100644
--- a/default.xml
+++ b/default.xml
@@ -563,6 +563,7 @@
   <project name="platform/external/python/rsa" />
   <project name="platform/external/python/scipy" />
   <project name="platform/external/python/setuptools" />
+  <project name="platform/external/python/six" />
   <project name="platform/external/qemu" />
   <project name="platform/external/qemu-android" />
   <project name="platform/external/qemu-pc-bios" />