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-rw-r--r--lib/spack/spack/database.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/spack/spack/database.py b/lib/spack/spack/database.py
index bf54055a24..a6f1cc5077 100644
--- a/lib/spack/spack/database.py
+++ b/lib/spack/spack/database.py
@@ -54,6 +54,7 @@ import spack.spec
from spack.version import Version
from spack.spec import Spec
from spack.error import SpackError
+from spack.packages import UnknownPackageError
# DB goes in this directory underneath the root
_db_dirname = '.spack-db'