From 8d3b3fdb6c4a66c19b28a56c12794172bd285f92 Mon Sep 17 00:00:00 2001
From: mhchia <kevin.mh.chia@gmail.com>
Date: Sat, 20 Jul 2019 22:47:37 +0800
Subject: [PATCH] Add debug msg

---
 libp2p/peer/peerinfo.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libp2p/peer/peerinfo.py b/libp2p/peer/peerinfo.py
index d708fda1..e1730669 100644
--- a/libp2p/peer/peerinfo.py
+++ b/libp2p/peer/peerinfo.py
@@ -20,7 +20,7 @@ def info_from_p2p_addr(addr: multiaddr.Multiaddr) -> PeerInfo:
 
     parts = addr.split()
     if not parts:
-        raise InvalidAddrError()
+        raise InvalidAddrError(f"`parts`={parts} should at least have a protocol `P_P2P`")
 
     p2p_part = parts[-1]
     last_protocol_code = p2p_part.protocols()[0].code