From 82319ba672e99256e8bfe95c5b973540cfb8ee5d Mon Sep 17 00:00:00 2001
From: Ben Nuttall <ben@bennuttall.com>
Date: Mon, 5 Oct 2015 12:08:55 +0100
Subject: [PATCH] Cleanup

---
 gpiozero/devices.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gpiozero/devices.py b/gpiozero/devices.py
index cd05cfe..98178f5 100644
--- a/gpiozero/devices.py
+++ b/gpiozero/devices.py
@@ -57,7 +57,8 @@ class GPIODevice(object):
         with _GPIO_PINS_LOCK:
             if pin in _GPIO_PINS:
                 raise GPIODeviceError(
-                    'pin %d is already in use by another gpiozero object' % pin)
+                    'pin %d is already in use by another gpiozero object' % pin
+                )
             _GPIO_PINS.add(pin)
         self._pin = pin
         self._active_state = GPIO.HIGH