[Enhance] Make scipy as a default dependency in runtime in dev-1.x

tests/test_models/test_backbones/test_beit.py

@@ -140,8 +140,11 @@ def test_beit_init():
         }
     }
     model = BEiT(img_size=(512, 512))
-    with pytest.raises(AttributeError):
-        model.resize_rel_pos_embed(ckpt)
+    # If scipy is installed, this AttributeError would not be raised.
+    from mmengine.utils import is_installed
+    if not is_installed('scipy'):
+        with pytest.raises(AttributeError):
+            model.resize_rel_pos_embed(ckpt)
 
     # pretrained=None
     # init_cfg=123, whose type is unsupported

tests/test_models/test_backbones/test_mae.py

@@ -138,8 +138,11 @@ def test_mae_init():
         }
     }
     model = MAE(img_size=(512, 512))
-    with pytest.raises(AttributeError):
-        model.resize_rel_pos_embed(ckpt)
+    # If scipy is installed, this AttributeError would not be raised.
+    from mmengine.utils import is_installed
+    if not is_installed('scipy'):
+        with pytest.raises(AttributeError):
+            model.resize_rel_pos_embed(ckpt)
 
     # test resize abs pos embed
     ckpt = model.resize_abs_pos_embed(ckpt['state_dict'])