diff --git a/brother_ql/__init__.py b/brother_ql/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/brother_ql/create.py b/brother_ql/create.py
index 89a2e16..c629b57 100755
--- a/brother_ql/create.py
+++ b/brother_ql/create.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python
 
+from __future__ import division
+
 import sys, argparse, logging
 
 import numpy as np
@@ -7,6 +9,11 @@ from PIL import Image
 
 from brother_ql.raster import BrotherQLRaster
 
+try:
+    stdout = sys.stdout.buffer
+except:
+    stdout = sys.stdout
+
 def hex_format(data):
     return ' '.join('{:02X}'.format(byte) for byte in data)
 
@@ -20,7 +27,7 @@ def multiline_hex(data, bpl):
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument('image')
-    parser.add_argument('outfile', nargs='?', type=argparse.FileType('wb'), default=sys.stdout.buffer)
+    parser.add_argument('outfile', nargs='?', type=argparse.FileType('wb'), default=stdout)
     parser.add_argument('--model', default='QL-500')
     parser.add_argument('--threshold', type=int, default=170)
     parser.add_argument('--loglevel', type=lambda x: getattr(logging, x), default=logging.WARNING)
@@ -54,7 +61,7 @@ def main():
     qlr.set_margins()
     qlr.set_compression(True)
     qlr.set_raster_data(arr)
-    qlr.print()
+    qlr.print_cmd()
 
     if args.loglevel == logging.DEBUG:
         sys.stderr.write(multiline_hex(qlr.data, 16))
diff --git a/brother_ql/raster.py b/brother_ql/raster.py
index b9179e3..d16e2b8 100644
--- a/brother_ql/raster.py
+++ b/brother_ql/raster.py
@@ -142,7 +142,7 @@ class BrotherQLRaster(object):
             self.data += bytes([len(row)])
             self.data += row
 
-    def print(self, last_page=True):
+    def print_cmd(self, last_page=True):
         if last_page:
             self.data += b'\x1A'
         else:
diff --git a/brother_ql/reader.py b/brother_ql/reader.py
index e33fe29..8e38a3d 100755
--- a/brother_ql/reader.py
+++ b/brother_ql/reader.py
@@ -34,7 +34,10 @@ dot_widths = {
 }
 
 def hex_format(data):
-    return ' '.join('{:02X}'.format(byte) for byte in data)
+    try: # Py3
+        return ' '.join('{:02X}'.format(byte) for byte in data)
+    except ValueError: # Py2
+        return ' '.join('{:02X}'.format(ord(byte)) for byte in data)
 
 class BrotherQLReader(object):