From b99c076baec6f73631a70910e399401897ee6c0b Mon Sep 17 00:00:00 2001
From: Christoph Heuel <mail@christoph-heuel.net>
Date: Tue, 19 May 2015 02:52:55 +0200
Subject: [PATCH] Fix for string operation

* With Python version 3 data and text are treated different. Convert the
* text accordingly.
---
 escpos/printer.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/escpos/printer.py b/escpos/printer.py
index 31b00c0..de88814 100644
--- a/escpos/printer.py
+++ b/escpos/printer.py
@@ -159,7 +159,10 @@ class File(Escpos):
 
     def _raw(self, msg):
         """ Print any command sent in raw format """
-        self.device.write(msg);
+        if type(msg) is str:
+            self.device.write(msg.encode());
+        else:
+            self.device.write(msg);
 
 
     def __del__(self):