back to not making breaks

lightrag/kg/nano_vector_db_impl.py

@@ -11,11 +11,14 @@ from lightrag.utils import (
     logger,
     compute_mdhash_id,
 )
-
+import pipmaster as pm
 from lightrag.base import (
     BaseVectorStorage,
 )
 
+if not pm.is_installed("nano-vectordb"):
+    pm.install("nano-vectordb")
+
 try:
     from nano_vectordb import NanoVectorDB
 except ImportError as e: