[Refactor] Replace if '_base_' with read_base(). (open-mmlab#1665)

mmpretrain/configs/beit/beit_beit_base_p16_8xb256_amp_coslr_300e_in1k.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.default_runtime import *
 
 from mmengine.dataset import DefaultSampler, default_collate

mmpretrain/configs/convnext/convnext_base_32xb128_in1k_384px.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.datasets.imagenet_bs64_swin_384 import *
     from .._base_.default_runtime import *
     from .._base_.models.convnext_base import *

mmpretrain/configs/eva/eva_mae_style_vit_base_p16_16xb256_coslr_400e_in1k.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.models.mae_vit_base_p16 import *
     from .._base_.datasets.imagenet_bs512_mae import *
     from .._base_.default_runtime import *

mmpretrain/configs/mae/mae_vit_base_p16_8xb512_amp_coslr_300e_in1k.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.models.mae_vit_base_p16 import *
     from .._base_.datasets.imagenet_bs512_mae import *
     from .._base_.default_runtime import *

mmpretrain/configs/resnet/resnet18_8xb32_in1k.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.datasets.imagenet_bs32 import *
     from .._base_.default_runtime import *
     from .._base_.models.resnet18 import *

mmpretrain/configs/simclr/simclr_resnet50_16xb256_coslr_200e_in1k.py

@@ -1,6 +1,8 @@
 # Copyright (c) OpenMMLab. All rights reserved.
 # This is a BETA new format config file, and the usage may change recently.
-if '_base_':
+from mmengine.config import read_base
+
+with read_base():
     from .._base_.datasets.imagenet_bs32_simclr import *
     from .._base_.schedules.imagenet_lars_coslr_200e import *
     from .._base_.default_runtime import *