From b81168dae90ca7ef7e8c9eff4cd5da8e420619c1 Mon Sep 17 00:00:00 2001
From: Jinesh Jain <732005jinesh@gmail.com>
Date: Sun, 13 Jul 2025 17:52:05 +0530
Subject: [PATCH 1/2] improve error message

---
 libp2p/utils/varint.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libp2p/utils/varint.py b/libp2p/utils/varint.py
index b9fa6b9b..91891ed1 100644
--- a/libp2p/utils/varint.py
+++ b/libp2p/utils/varint.py
@@ -44,7 +44,9 @@ async def decode_uvarint_from_stream(reader: Reader) -> int:
     res = 0
     for shift in itertools.count(0, 7):
         if shift > SHIFT_64_BIT_MAX:
-            raise ParseError("TODO: better exception msg: Integer is too large...")
+            raise ParseError(
+                "Varint decoding error: integer exceeds maximum size of 64 bits."
+            )
 
         byte = await read_exactly(reader, 1)
         value = byte[0]

From 311b75051150ba2954eb23f734d6d817b87a7968 Mon Sep 17 00:00:00 2001
From: Jinesh Jain <732005jinesh@gmail.com>
Date: Wed, 16 Jul 2025 20:53:23 +0530
Subject: [PATCH 2/2] add newsfragment file

---
 newsfragments/760.docs.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 newsfragments/760.docs.rst

diff --git a/newsfragments/760.docs.rst b/newsfragments/760.docs.rst
new file mode 100644
index 00000000..0cf211dd
--- /dev/null
+++ b/newsfragments/760.docs.rst
@@ -0,0 +1 @@
+Improve error message under the function decode_uvarint_from_stream in libp2p/utils/varint.py file