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-rw-r--r--lib/spack/spack/directives.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/spack/spack/directives.py b/lib/spack/spack/directives.py
index f9cdc261d3..d9195d9ecd 100644
--- a/lib/spack/spack/directives.py
+++ b/lib/spack/spack/directives.py
@@ -37,6 +37,7 @@ import six
import llnl.util.lang
import llnl.util.tty.color
+
import spack.error
import spack.patch
import spack.spec
@@ -47,7 +48,6 @@ from spack.fetch_strategy import from_kwargs
from spack.resource import Resource
from spack.version import Version, VersionChecksumError
-
if sys.version_info >= (3, 3):
from collections.abc import Sequence # novm
else: