Add __future__ to more python files.
Change-Id: Ic2419fc1d2e92c58707b8454a9806ed213cb3c09
diff --git a/tools/build_all_configs.py b/tools/build_all_configs.py
index c1e22a0..8f2245c 100755
--- a/tools/build_all_configs.py
+++ b/tools/build_all_configs.py
@@ -13,6 +13,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+from __future__ import absolute_import
+from __future__ import division
from __future__ import print_function
import argparse
diff --git a/tools/check_include_violations b/tools/check_include_violations
index e308ec7..9b68c7b 100755
--- a/tools/check_include_violations
+++ b/tools/check_include_violations
@@ -19,6 +19,10 @@
# - public includes don't end up depending on private src/ headers.
# - We use consistently <angle brackets> for other libraries.
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
import os
import re
import subprocess
diff --git a/tools/check_proto_comments b/tools/check_proto_comments
index 97dbce4..c5c3922 100755
--- a/tools/check_proto_comments
+++ b/tools/check_proto_comments
@@ -15,6 +15,10 @@
# This tool checks for inline comments in proto files
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
+
import os
import re
import subprocess
