Fix return type error

app.py

@@ -361,10 +361,15 @@ def start_tryon(dict,garm_img,garment_des,is_checked,denoise_steps,seed, is_chec
     
 
     # DensePose 모델 다운로드 및 경로 설정
-    densepose_model_path = download_densepose_model()
-    if densepose_model_path is None:
-        print("Failed to download DensePose model, using default path")
-        densepose_model_path = './ckpt/densepose/model_final_162be9.pkl'
+    densepose_model_path = './ckpt/densepose/model_final_162be9.pkl'
+    
+    # 모델 파일이 없으면 다운로드 시도
+    if not os.path.exists(densepose_model_path):
+        print("DensePose model not found, attempting to download...")
+        download_success = download_densepose_model()
+        if not download_success:
+            print("Failed to download DensePose model")
+            return None, None
     
     args = apply_net.create_argument_parser().parse_args(('show', './configs/densepose_rcnn_R_50_FPN_s1x.yaml', densepose_model_path, 'dp_segm', '-v', '--opts', 'MODEL.DEVICE', 'cuda'))
     # verbosity = getattr(args, "verbosity", None)