core[patch] Do not try to access attribute of None (#16321)

5 months ago · 226fe645f1
parent 4b7969efc5
commit 226fe645f1
1 changed files with 6 additions and 1 deletions
--- a/libs/core/langchain_core/runnables/utils.py
+++ b/libs/core/langchain_core/runnables/utils.py
@ -248,7 +248,12 @@ def get_function_nonlocals(func: Callable) -> List[Any]:
                if "." in kk and kk.startswith(k):
                    vv = v
                    for part in kk.split(".")[1:]:
-                        vv = getattr(vv, part)
+                        if vv is None:
+                            break
+                        else:
+                            vv = getattr(vv, part)
+                    else:
+                        values.append(vv)
                    values.append(vv)
        return values
    except (SyntaxError, TypeError, OSError):