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chatbot.py

@@ -24,20 +24,11 @@ except ImportError:
     pass  # Not in HF Spaces, use default sqlite3
 
 # LangChain imports - using langchain_community for newer versions
-try:
-    # Try newer import paths first (langchain >= 0.1.0)
-    from langchain_community.document_loaders import TextLoader
-    from langchain_community.vectorstores import Chroma
-    from langchain_community.embeddings import HuggingFaceEmbeddings
-    from langchain.text_splitter import CharacterTextSplitter
-    from langchain_core.language_models.llms import LLM
-except ImportError:
-    # Fall back to older import paths (langchain < 0.1.0)
-    from langchain.document_loaders import TextLoader
-    from langchain.vectorstores import Chroma
-    from langchain.embeddings import HuggingFaceEmbeddings
-    from langchain.text_splitter import CharacterTextSplitter
-    from langchain.llms.base import LLM
+from langchain_community.document_loaders import TextLoader
+from langchain_community.vectorstores import Chroma
+from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_text_splitters import CharacterTextSplitter
+from langchain_core.language_models.llms import LLM
 
 from config import Scenario, ResearcherControlledParams, ParticipantVisibleParams
 

requirements.txt

@@ -7,6 +7,7 @@ openpyxl>=3.1.0
 langchain>=0.1.0
 langchain-community>=0.0.10
 langchain-core>=0.1.0
+langchain-text-splitters>=0.0.1
 chromadb>=0.4.13
 sentence-transformers>=2.2.0