@@ -0,0 +1,7 @@
+_base_ = './faster_rcnn_r50_fpn_1x_coco.py'
+classes = ['person', 'bicycle', 'car']
+data = dict(
+    train=dict(classes=classes),
+    val=dict(classes=classes),
+    test=dict(classes=classes))
+load_from = 'https://s3.ap-northeast-2.amazonaws.com/open-mmlab/mmdetection/models/faster_rcnn_r50_fpn_1x_20181010-3d1b3351.pth'  # noqa
Use tuple instead of list.