Improve math chain error msg (#4415)

1 year ago · 65f85af242
parent f6c97e6af4
commit 65f85af242
1 changed files with 4 additions and 1 deletions
--- a/langchain/chains/llm_math/base.py
+++ b/langchain/chains/llm_math/base.py
@ -84,7 +84,10 @@ class LLMMathChain(Chain):
                )
            )
        except Exception as e:
-            raise ValueError(f"{e}. Please try again with a valid numerical expression")
+            raise ValueError(
+                f'LLMMathChain._evaluate("{expression}") raised error: {e}.'
+                " Please try again with a valid numerical expression"
+            )

        # Remove any leading and trailing brackets from the output
        return re.sub(r"^\[|\]$", "", output)