From 5ae63c09cd820983aba1a3976c962d509880f9af Mon Sep 17 00:00:00 2001
From: Ryan Flynn <parseerror@gmail.com>
Date: Sat, 22 Oct 2016 23:37:33 -0400
Subject: [PATCH] ensure filename variable exists for all code paths

---
 labelImg.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/labelImg.py b/labelImg.py
index 6e3de46f..fcf66959 100755
--- a/labelImg.py
+++ b/labelImg.py
@@ -907,6 +907,7 @@ class MainWindow(QMainWindow, WindowMixin):
         if len(self.mImgList) <= 0:
             return
 
+        filename = None
         if self.filename is None:
             filename = self.mImgList[0]
         else: