Added gitignore and Py2 implementation for testing.

.gitignore

@@ -0,0 +1,2 @@
+/__pycache__/
+*.pyc

tty2newsml_py2.py

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+#!/bin/env python
+# -*- coding: utf-8 -*-
+
+from __future__ import absolute_import, division, print_function
+
+import serial
+import sys
+import IPTCMessage
+
+class _main(object):
+    def __init__(self, port='/dev/tty706'):
+        self.openPort(port)
+        while True:
+            msg = self.waitForStart()
+            msg += self.readUntilEOM()
+            print("This is the message: %s" % repr(msg))
+
+    def openPort(self, port):
+        self.port = serial.Serial(port=port, baudrate=4800, bytesize=serial.EIGHTBITS, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, timeout=None)
+        print("%s opened with %i baud. Timeout is %s seconds." % (self.port.name, self.port.baudrate, self.port.timeout))
+
+    def waitForStart(self):
+        print("Waiting for start indicator (%i): " % self.port.inWaiting(), end='')
+        sys.stdout.flush()
+        while True:
+            byte = self.port.read()
+            print(".", end='')
+            sys.stdout.flush()
+            if byte == b'\x01':
+                print("Found.")
+                return byte
+
+    def readUntilEOM(self):
+        print("Reading data until EOM.", end='')
+        sys.stdout.flush()
+        msg = b''
+        ctr = 0
+        while True:
+            print("%i>" % self.port.inWaiting(), end='')
+            sys.stdout.flush()
+            byte = self.port.read()
+            ctr+=1
+#            if ctr % 10 is 0:
+            print(".", end='')
+            sys.stdout.flush()
+            if byte == b'\x01':
+                print("PROBLEM: Got start indicator, but message not yet finished.")
+                break
+            msg += byte
+            if byte == b'\x04':
+                break
+        print("Got %i bytes." % len(msg))
+        return msg
+
+    def readLine(self):
+        rcv = self.port.readline()
+        print("Got: %s" % repr(rcv))
+
+if __name__=='__main__':
+    _main()