From e2bb126e6f86a2213e47029565ca96a86482a56f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Krist=C3=B3f=20T=C3=B3th?= <kristof.toth@avatao.com>
Date: Sat, 14 Apr 2018 21:07:33 +0200
Subject: [PATCH] Make simple not if condition more pythonic

---
 lib/tfw/components/webide_event_handler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/tfw/components/webide_event_handler.py b/lib/tfw/components/webide_event_handler.py
index 0a303ed..abe9e21 100644
--- a/lib/tfw/components/webide_event_handler.py
+++ b/lib/tfw/components/webide_event_handler.py
@@ -58,7 +58,7 @@ class FileManager:  # pylint: disable=too-many-instance-attributes
 
     @filename.setter
     def filename(self, filename):
-        if not filename in self.files:
+        if filename not in self.files:
             raise EnvironmentError('No such file in workdir!')
         self._filename = filename