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-rw-r--r--setuptools/tests/test_build_meta.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/setuptools/tests/test_build_meta.py b/setuptools/tests/test_build_meta.py
index 659c1a65..b39b7b8f 100644
--- a/setuptools/tests/test_build_meta.py
+++ b/setuptools/tests/test_build_meta.py
@@ -5,12 +5,14 @@ import pytest
from .files import build_files
from .textwrap import DALS
+__metaclass__ = type
+
futures = pytest.importorskip('concurrent.futures')
importlib = pytest.importorskip('importlib')
-class BuildBackendBase(object):
+class BuildBackendBase:
def __init__(self, cwd=None, env={}, backend_name='setuptools.build_meta'):
self.cwd = cwd
self.env = env