Resolve "Testing issue: py-frites"

Closes #27 (closed)

packages/py-frites/package.py

@@ -59,3 +59,4 @@ class PyFrites(PythonPackage):
     depends_on('py-netcdf4', type=('build', 'run'))
     depends_on('py-h5netcdf', type=('build', 'run'))
     depends_on('py-scikit-learn', type=('build', 'run'))
+    depends_on('py-decorator', type=('build', 'run'))