From 01ab8d3ee94119855760c384b62c7bf7f41c5aa2 Mon Sep 17 00:00:00 2001
From: Jean-Paul Calderone <exarkun@twistedmatrix.com>
Date: Mon, 30 Nov 2020 08:56:45 -0500
Subject: [PATCH] Don't look before you leap

---
 src/allmydata/nodemaker.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/allmydata/nodemaker.py b/src/allmydata/nodemaker.py
index 8e68d92fe..c3ba1ba7b 100644
--- a/src/allmydata/nodemaker.py
+++ b/src/allmydata/nodemaker.py
@@ -66,9 +66,9 @@ class NodeMaker(object):
             memokey = b"I" + bigcap
         else:
             memokey = b"M" + bigcap
-        if memokey in self._node_cache:
+        try:
             node = self._node_cache[memokey]
-        else:
+        except KeyError:
             cap = uri.from_string(bigcap, deep_immutable=deep_immutable,
                                   name=name)
             node = self._create_from_single_cap(cap)