Relax gradio version (causes urllib3 conflict in certain setups) (#20)

requirements.txt

@@ -1,6 +1,6 @@
 GitPython==3.1.43
 Pygments==2.18.0
-gradio==4.42.0
+gradio>=4.26.0
 langchain==0.2.14
 langchain-community==0.2.12
 langchain-anthropic==0.1.23

src/vector_store.py

@@ -99,7 +99,8 @@ class MarqoVectorStore(VectorStore):
 def build_from_args(args: dict) -> VectorStore:
     """Builds a vector store from the given command-line arguments."""
     if args.vector_store_type == "pinecone":
-        return PineconeVectorStore(index_name=args.index_name, namespace=args.repo_id, dimension=args.embedding_size)
+        dimension = args.embedding_size if "embedding_size" in args else None
+        return PineconeVectorStore(index_name=args.index_name, namespace=args.repo_id, dimension=dimension)
     elif args.vector_store_type == "marqo":
         return MarqoVectorStore(url=args.marqo_url, index_name=args.index_name)
     else: