CallDistanceTransceiver.py: destination_number does not have to be a member

The destination_number is only used int he transmit functions, it can
very well be just an argument of the transmit functions.

diff --git a/src/savemysugar/CallDistanceTransceiver.py b/src/savemysugar/CallDistanceTransceiver.py
index fbc347a..aaadafd 100755 (executable)
--- a/src/savemysugar/CallDistanceTransceiver.py
+++ b/src/savemysugar/CallDistanceTransceiver.py
@@ -216,8 +216,6 @@ class CallDistanceTransceiver(object):
         self.modem = modem
         self.translator = MorseTranslator()
 
-        self.destination_number = ""
-
         self.call_setup_time_max = call_setup_time_max
 
         if add_inter_call_distance:
@@ -352,7 +350,7 @@ class CallDistanceTransceiver(object):
     def get_text(self):
         return self.text_message
 
-    def transmit_symbol(self, symbol, sleep_time):
+    def transmit_symbol(self, destination_number, symbol, sleep_time):
         logging.info("Dial and wait %.2f = %.2f + %.2f seconds "
                      "(transmitting '%s')",
                      self.call_setup_time_max + sleep_time,
@@ -363,15 +361,13 @@ class CallDistanceTransceiver(object):
         # Dial, then wait self.call_setup_time_max to make sure the receiver
         # gets at least one RING, and then hangup and sleep the time needed to
         # transmit a symbol.
-        self.modem.send_command("ATDT" + self.destination_number + ";")
+        self.modem.send_command("ATDT" + destination_number + ";")
         time.sleep(self.call_setup_time_max)
         self.modem.send_command("ATH")
         self.modem.get_response()
         time.sleep(sleep_time)
 
     def transmit(self, message, destination_number):
-        self.destination_number = destination_number
-
         morse_message = self.translator.text_to_morse(message)
         distances = self.modulator.modulate(morse_message)
 
@@ -384,7 +380,7 @@ class CallDistanceTransceiver(object):
                 total_sleep_time = self.call_setup_time_max + distance
                 symbol = self.modulator.distance_to_symbol(total_sleep_time)
 
-            self.transmit_symbol(symbol, distance)
+            self.transmit_symbol(destination_number, symbol, distance)
 
     def estimate_transmit_duration(self, message):
         morsemessage = self.translator.text_to_morse(message)