Change relative imports to absolute.

dulwich/tests/test_missing_obj_finder.py

@@ -23,7 +23,7 @@ from dulwich.objects import (
     Blob,
     )
 from dulwich.tests import TestCase
-from utils import (
+from dulwich.tests.utils import (
     make_object,
     build_commit_graph,
     )

dulwich/tests/test_objects.py

@@ -56,7 +56,7 @@ from dulwich.objects import (
 from dulwich.tests import (
     TestCase,
     )
-from utils import (
+from dulwich.tests.utils import (
     make_commit,
     make_object,
     functest_builder,

dulwich/tests/test_pack.py

@@ -71,7 +71,7 @@ from dulwich.pack import (
 from dulwich.tests import (
     TestCase,
     )
-from utils import (
+from dulwich.tests.utils import (
     make_object,
     build_pack,
     )

dulwich/tests/test_utils.py

@@ -28,7 +28,7 @@ from dulwich.objects import (
 from dulwich.tests import (
     TestCase,
     )
-from utils import (
+from dulwich.tests.utils import (
     make_object,
     build_commit_graph,
     )

dulwich/tests/test_walk.py

@@ -47,7 +47,7 @@ from dulwich.walk import (
     _topo_reorder
     )
 from dulwich.tests import TestCase
-from utils import (
+from dulwich.tests.utils import (
     F,
     make_object,
     build_commit_graph,