Pep8 Compliance

lib/spack/spack/test/database.py

@@ -38,13 +38,20 @@ def test_store(tmpdir):
 
     spack.store.store = real_store
 
+
 @pytest.fixture()
 def test_global_db_initializtion():
+    global_store = spack.store.store
     global_db_path = '$spack/opt/spack'
     global_db_path = spack.util.path.canonicalize_path(global_db_path)
     shutil.rmtree(os.path.join(global_db_path, '.spack-db'))
     global_store = spack.store.Store(str(global_db_path))
 
+    yield
+
+    spack.store.store = global_store
+
+
 @pytest.fixture()
 def upstream_and_downstream_db(tmpdir_factory, gen_mock_layout):
     mock_db_root = str(tmpdir_factory.mktemp('mock_db_root'))