diff --git a/lib/spack/spack/spec.py b/lib/spack/spack/spec.py index aa6397271b70672f5c693ddd0e7046a4ee835c65..4838fd99466b197ed583f91afc7c647cc3012b7c 100644 --- a/lib/spack/spack/spec.py +++ b/lib/spack/spack/spec.py @@ -838,7 +838,7 @@ def normalize(self, **kwargs): # If there are deps specified but not visited, they're not # actually deps of this package. Raise an error. - extra = set(spec_deps.viewkeys()).difference(visited) + extra = set(spec_deps.keys()).difference(visited) # Also subtract out all the packags that provide a needed vpkg vdeps = [v for v in self.package.virtual_dependencies()]