fix wechat

README.md

@@ -192,7 +192,7 @@ All RAG examples share these common parameters. **Interactive mode** is availabl
 
 # Search Parameters
 --top-k N               # Number of results to retrieve (default: 20)
---search-complexity N   # Search complexity for graph traversal (default: 64)
+--search-complexity N   # Search complexity for graph traversal (default: 32)
 
 # Chunking Parameters
 --chunk-size N          # Size of text chunks (default varies by source: 256 for most, 192 for WeChat)

examples/email_rag.py

@@ -18,6 +18,7 @@ class EmailRAG(BaseRAGExample):
 
     def __init__(self):
         # Set default values BEFORE calling super().__init__
+        self.max_items_default = -1  # Process all emails by default
         self.embedding_model_default = (
             "sentence-transformers/all-MiniLM-L6-v2"  # Fast 384-dim model
         )

examples/wechat_rag.py

@@ -19,7 +19,7 @@ class WeChatRAG(BaseRAGExample):
 
     def __init__(self):
         # Set default values BEFORE calling super().__init__
-        self.max_items_default = 50  # Match original default
+        self.max_items_default = -1  # Match original default
         self.embedding_model_default = (
             "sentence-transformers/all-MiniLM-L6-v2"  # Fast 384-dim model
         )
@@ -143,6 +143,7 @@ class WeChatRAG(BaseRAGExample):
             return []
 
         print(f"\nTotal loaded {len(all_documents)} chat documents from {len(export_dirs)} exports")
+        print("now starting to split into text chunks ... take some time")
 
         # Convert to text chunks with contact information
         all_texts = []

packages/leann-core/src/leann/api.py

@@ -463,8 +463,9 @@ class LeannSearcher:
             print(
                 f"Leann metadata file not found at {self.meta_path_str}, and you may need to rm -rf {parent_dir}"
             )
+            # highlight in red the filenotfound error
             raise FileNotFoundError(
-                f"Leann metadata file not found at {self.meta_path_str}, you may need to rm -rf {parent_dir}"
+                f"Leann metadata file not found at {self.meta_path_str}, \033[91m you may need to rm -rf {parent_dir}\033[0m"
             )
         with open(self.meta_path_str, encoding="utf-8") as f:
             self.meta_data = json.load(f)