Update app.py

app.py

@@ -655,17 +655,16 @@ current_index = 0
 image_names = []
 
 def unzip_images(zip_file_path, extract_to):
-    if not os.path.exists(extract_to):
-        os.makedirs(extract_to)
-        with zipfile.ZipFile(zip_file_path, 'r') as zip_ref:
-            zip_ref.extractall(extract_to)
-        print("unzip successful")
+    with zipfile.ZipFile(zip_file_path, 'r') as zip_ref:
+        zip_ref.extractall(extract_to)
+    print("unzip successful")
 
 
 def show_image(current_idx):
     zip_file_path = './img_data.zip'
     images_folder = './images'
     if not os.path.exists(images_folder):
+        os.makedirs(images_folder)
         unzip_images(zip_file_path, images_folder)
     image_name=image_names[current_idx]
     image_path = f"./images/{image_name}.jpg"