add py-ordereddict module dependence.

krafczyk · krafczyk · commit 3bf1d9b8d76b · 2016-11-16T14:30:54.000-05:00
diff --git a/var/spack/repos/builtin/packages/py-singledispatch/package.py b/var/spack/repos/builtin/packages/py-singledispatch/package.py
@@ -37,6 +37,7 @@ class PySingledispatch(Package):
 
     depends_on('py-setuptools', type='build')
     depends_on('py-six')
+    depends_on('py-ordereddict', when="^python@:2.6.999")
 
     def install(self, spec, prefix):
         setup_py('install', '--prefix={0}'.format(prefix))
