From bcc2ca7d3313fd5b5a2f3821599be2690607f652 Mon Sep 17 00:00:00 2001
From: Dmitri Bogomolov <4glitch@gmail.com>
Date: Fri, 15 May 2020 18:16:06 +0300
Subject: [PATCH] Immediately raise ValueError in
 connectionchooser.chooseConnection()

if have no nodes for given stream.
---
 src/network/connectionchooser.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/network/connectionchooser.py b/src/network/connectionchooser.py
index c31bbb6a..fddba10e 100644
--- a/src/network/connectionchooser.py
+++ b/src/network/connectionchooser.py
@@ -44,7 +44,10 @@ def chooseConnection(stream):
         # discovered peers are already filtered by allowed streams
         return getDiscoveredPeer()
     for _ in range(50):
-        peer = random.choice(knownnodes.knownNodes[stream].keys())
+        try:
+            peer = random.choice(knownnodes.knownNodes[stream].keys())
+        except IndexError:
+            break
         try:
             peer_info = knownnodes.knownNodes[stream][peer]
             if peer_info.get('self'):