From b66d417be046c8b49a683649351834170bd9a734 Mon Sep 17 00:00:00 2001
From: Nils Diefenbach <23okrs20+github@mykolab.com>
Date: Tue, 24 Oct 2017 15:12:13 +0200
Subject: [PATCH] Remove redundant key creation in dict

using python's built-in `collections.defaultdict()` makes this more readable.
---
 pusherclient/channel.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/pusherclient/channel.py b/pusherclient/channel.py
index a09fe22..e1852cd 100755
--- a/pusherclient/channel.py
+++ b/pusherclient/channel.py
@@ -1,10 +1,12 @@
+from collections import defaultdict
+
 class Channel(object):
     def __init__(self, channel_name, connection):
         self.name = channel_name
 
         self.connection = connection
 
-        self.event_callbacks = {}
+        self.event_callbacks = defaultdict(list)
 
     def bind(self, event_name, callback):
         """Bind an event to a callback
@@ -14,9 +16,6 @@ def bind(self, event_name, callback):
 
         :param callback: The callback to notify of this event.
         """
-        if event_name not in self.event_callbacks.keys():
-            self.event_callbacks[event_name] = []
-
         self.event_callbacks[event_name].append(callback)
 
     def trigger(self, event_name, data):