fix(python): huggingface TEI auth, procedural-memory content handling, and proxy pip auto-install (#6947)

mem0/memory/main.py

@@ -2017,6 +2017,12 @@ class Memory(MemoryBase):
             logger.error(f"Error generating procedural memory summary: {e}")
             raise
 
+        if not procedural_memory:
+            raise ValueError(
+                "The LLM returned no content for the procedural memory summary. "
+                "The model may have declined the request or returned an empty response."
+            )
+
         if metadata is None:
             raise ValueError("Metadata cannot be done for procedural memory.")
 
@@ -3701,11 +3707,17 @@ class AsyncMemory(MemoryBase):
             else:
                 procedural_memory = await asyncio.to_thread(self.llm.generate_response, messages=parsed_messages)
                 procedural_memory = remove_code_blocks(procedural_memory)
-        
+
         except Exception as e:
             logger.error(f"Error generating procedural memory summary: {e}")
             raise
 
+        if not procedural_memory:
+            raise ValueError(
+                "The LLM returned no content for the procedural memory summary. "
+                "The model may have declined the request or returned an empty response."
+            )
+
         if metadata is None:
             raise ValueError("Metadata cannot be done for procedural memory.")
 

mem0/memory/utils.py

@@ -121,7 +121,15 @@ def remove_code_blocks(content: str) -> str:
     - If a code block is detected, it returns only the inner content, stripping out the markers.
     - If no code block markers are found, the original content is returned as-is.
     """
-    if content is None:
+    if isinstance(content, list):
+        parts = []
+        for block in content:
+            if isinstance(block, str):
+                parts.append(block)
+            elif isinstance(block, dict):
+                parts.append(block.get("text", ""))
+        content = "".join(parts)
+    if not isinstance(content, str):
         return ""
     pattern = r"^```[a-zA-Z0-9]*\n([\s\S]*?)\n```$"
     match = re.match(pattern, content.strip())