From 022fdd52c3ad149ab9333006538eabfade206e21 Mon Sep 17 00:00:00 2001
From: Mason Daugherty <mason@langchain.dev>
Date: Wed, 5 Nov 2025 14:19:55 -0500
Subject: [PATCH] fix(core): handle missing dependency version information
 (#33844)

Follow up to #33347

This continues to make searching issues difficult
---
 libs/core/langchain_core/sys_info.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/libs/core/langchain_core/sys_info.py b/libs/core/langchain_core/sys_info.py
index ac83ad7d42e..86716af4714 100644
--- a/libs/core/langchain_core/sys_info.py
+++ b/libs/core/langchain_core/sys_info.py
@@ -125,9 +125,11 @@ def print_sys_info(*, additional_pkgs: Sequence[str] = ()) -> None:
         for dep in sub_dependencies:
             try:
                 dep_version = metadata.version(dep)
-                print(f"> {dep}: {dep_version}")
             except Exception:
-                print(f"> {dep}: Installed. No version info available.")
+                dep_version = None
+
+            if dep_version is not None:
+                print(f"> {dep}: {dep_version}")
 
 
 if __name__ == "__main__":