--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/zebra.py	Fri Aug 12 21:40:12 2011 +0100
@@ -0,0 +1,91 @@
+#!/usr/bin/env python
+# NOTE: this package is Linux specific at the moment
+
+import subprocess
+import os.path
+import sys
+if sys.platform.lower().startswith('win'):
+    import win32print
+
+class zebra(object):
+    def __init__(self, queue=None):
+        """queue - name of the printer queue as returned by lpstat -d"""
+        self.queue = queue
+
+    def _output_unix(self, commands):
+        if self.queue == 'zebra_python_unittest':
+            p = subprocess.Popen(['cat','-'], stdin=subprocess.PIPE)
+        else:
+            p = subprocess.Popen(['lpr','-P%s'%self.queue], stdin=subprocess.PIPE)
+        if type(commands) == bytes:
+            p.communicate(commands)
+        else:
+            p.communicate(str(commands).encode())
+        p.stdin.close()
+
+    def _output_win(self, commands):
+        raise Exception('Not yet implemented')
+    
+    def output(self, commands):
+        assert self.queue is not None
+        if sys.platform.startswith('win'):
+            self._output_win(commands)
+        else:
+            self._output_unix(commmands)
+
+    def _getqueues_unix(self):
+        queues = []
+        output = subprocess.check_output(['lpstat','-p'], universal_newlines=True)
+        for line in output.split('\n'):
+            if line.startswith('printer'):
+                queues.append(line.split(' ')[1])
+        return queues
+
+    def _getqueues_win(self):
+        raise Exception('Not yet implemented')
+
+    def getqueues(self):
+        if sys.platform.startswith('win'):
+            return self._getqueues_win()
+        else:
+            return self._getqueues_unix()
+
+    def setqueue(self,queue):
+        self.queue = queue
+
+    def setup(self, direct_transfer=None, label_height=None, label_width=None):
+        commands = '\n'
+        if direct_transfer:
+            commands += ('OD\n')
+        if label_height:
+           commands += ('Q%s,%s\n'%(label_height[0],label_height[1]))
+        if label_width:
+            commands += ('q%s\n'%label_width)
+        self.output(commands)
+
+    def store_graphic(self, name, filename):
+        assert filename.endswith('.pcx')
+        commands = '\nGK"%s"\n'%name
+        commands += 'GK"%s"\n'%name
+        size = os.path.getsize(filename)
+        commands += 'GM"%s"%s\n'%(name,size)
+        self.output(commands)
+        self.output(open(filename,'rb').read())
+
+if __name__ == '__main__':
+    z = zebra()
+    print 'Printer queues found:',z.getqueues()
+    z.setqueue('zebra_python_unittest')
+#    z.setup(direct_transfer=True, label_height=(406,32), label_width=609)    # 3" x 2" label
+#    z.store_graphic('logo','logo.pcx')
+    label = """
+N
+GG419,40,"logo"
+A40,80,0,4,1,1,N,"Tangerine Duck 4.4%"
+A40,198,0,3,1,1,N,"Duty paid on 39.9l"
+A40,240,0,3,1,1,N,"Gyle: 123     Best Before: 16/09/2011"
+A40,320,0,4,1,1,N,"Pump & Truncheon"
+P1
+"""
+    z.output(label)
+