From ce87a1ce732c845ed9e8343479783ba36e34150a Mon Sep 17 00:00:00 2001
From: Eugenio Parodi <ceccopierangiolieugenio@googlemail.com>
Date: Mon, 15 Mar 2021 10:37:41 +0000
Subject: [PATCH] Fix flake8 error

---
 TermTk/TTkCore/canvas.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/TermTk/TTkCore/canvas.py b/TermTk/TTkCore/canvas.py
index f49e07ea..fe0e9619 100644
--- a/TermTk/TTkCore/canvas.py
+++ b/TermTk/TTkCore/canvas.py
@@ -537,6 +537,7 @@ class TTkCanvas:
         oldData, oldColors = self._bufferedData, self._bufferedColors
         lastcolor = TTkColor.RST
         empty = True
+        ansi = ""
         for y in range(0, self._height):
             for x in range(0, self._width):
                 if self._data[y][x] == oldData[y][x] and \