From 1ceb2c8a8fc3527cb3d7389f009ad2a1709f4ac1 Mon Sep 17 00:00:00 2001
From: Daniel Darabos <darabos.daniel@gmail.com>
Date: Mon, 1 Sep 2014 12:28:17 +0200
Subject: [PATCH] Use %d string interpolation instead of {}.

---
 ec2/spark_ec2.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ec2/spark_ec2.py b/ec2/spark_ec2.py
index 7c0dea942739e..a11a3e8c13328 100755
--- a/ec2/spark_ec2.py
+++ b/ec2/spark_ec2.py
@@ -347,7 +347,7 @@ def launch_cluster(conn, opts, cluster_name):
     if opts.instance_type.startswith('m3.'):
         for i in range(get_num_disks(opts.instance_type)):
             dev = BlockDeviceType()
-            dev.ephemeral_name = 'ephemeral{}'.format(i)
+            dev.ephemeral_name = 'ephemeral%d' % i
             # The first ephemeral drive is /dev/sdb.
             name = '/dev/sd' + string.letters[i + 1]
             block_map[name] = dev