Silence an annoying matplotlib warning.
@@ -19,6 +19,9 @@ for path in ENV['PYTHONPATH'].split(':'):
CUR_DIR = os.getcwd()
sys.path.append(os.path.dirname(CUR_DIR))
+# Silence a warning (https://github.com/tensorflow/models/issues/3786)
+import matplotlib; matplotlib.use('Agg')
+
import ck_utils
import converter_results
import converter_annotations
