From 872910ae4392f498e5317d8a85d8507a3d711388 Mon Sep 17 00:00:00 2001
From: Om Rajput <150363099+OmRajput17@users.noreply.github.com>
Date: Mon, 7 Sep 2026 04:35:41 +0530
Subject: [PATCH] fix(langchain-classic): correct sqlite3 install guidance in
 SQLiteEntityStore error message (#40248)

---
 libs/langchain/langchain_classic/memory/entity.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libs/langchain/langchain_classic/memory/entity.py b/libs/langchain/langchain_classic/memory/entity.py
index 29bd33dcec..c52b34385d 100644
--- a/libs/langchain/langchain_classic/memory/entity.py
+++ b/libs/langchain/langchain_classic/memory/entity.py
@@ -389,7 +389,12 @@ class SQLiteEntityStore(BaseEntityStore):
         except ImportError as e:
             msg = (
                 "Could not import sqlite3 python package. "
-                "Please install it with `pip install sqlite3`."
+                "sqlite3 is part of the Python standard library, not a package "
+                "installable via pip. If it is missing, your Python installation "
+                "was likely built without SQLite support — check your Python or "
+                "operating system distributor's instructions for enabling the "
+                "sqlite3 extension (e.g., recompiling Python with SQLite support, "
+                "or installing your OS's sqlite3/libsqlite3 development package)."
             )
             raise ImportError(msg) from e