add magic coding comment

examples/barcodes.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function

examples/codepage_tables.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 """Prints code page tables.
 """
 from __future__ import absolute_import

examples/qr_code.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function

examples/software_barcode.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function

examples/weather.py

@@ -1,5 +1,5 @@
-#!/usr/bin/python
-
+#!/usr/bin/env python
+#  -*- coding: utf-8 -*-
 
 # Adapted script from Adafruit
 # Weather forecast for Raspberry Pi w/Adafruit Mini Thermal Printer.

setup.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+#  -*- coding: utf-8 -*-
 
 from __future__ import absolute_import
 from __future__ import division

src/escpos/capabilities.py

@@ -1,3 +1,6 @@
+#!/usr/bin/env python
+#  -*- coding: utf-8 -*-
+
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function

src/escpos/cli.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+#  -*- coding: utf-8 -*-
 # PYTHON_ARGCOMPLETE_OK
 """ CLI
 

src/escpos/codepages.py

@@ -1,3 +1,6 @@
+#!/usr/bin/env python
+#  -*- coding: utf-8 -*-
+
 from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function

src/escpos/config.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 """ ESC/POS configuration manager.
 
 This module contains the implentations of abstract base class :py:class:`Config`.

src/escpos/escpos.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 #  -*- coding: utf-8 -*-
 """ Main class
 

src/escpos/image.py

@@ -1,3 +1,4 @@
+#  -*- coding: utf-8 -*-
 """ Image format handling class
 
 This module contains the image format handler :py:class:`EscposImage`.

src/escpos/magicencode.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 #  -*- coding: utf-8 -*-
 """ Magic Encode