mbridge importing

verl/models/mcore/mbridge.py

@@ -17,20 +17,7 @@
     from mbridge import AutoBridge
     from mbridge.utils.post_creation_callbacks import freeze_moe_router, make_value_model
 except ImportError:
-    import subprocess
-    import sys
-
-    print("mbridge package not found. This package is required for model bridging functionality.")
-    print("Install mbridge with `pip install mbridge`")
-
-    def install_mbridge():
-        try:
-            subprocess.check_call([sys.executable, "-m", "pip", "install", "mbridge"])
-        except subprocess.CalledProcessError:
-            print("Failed to install mbridge")
-            raise
-
-    install_mbridge()
-    from mbridge import *
+    print("mbridge package not found. Please install mbridge with `pip install verl[mcore]` or `pip install mbridge`")
+    raise
 
 __all__ = ["AutoBridge", "make_value_model", "freeze_moe_router"]