extracted device initialisation to a method

hpib.py

@@ -32,13 +32,8 @@ class PrologixGpibUsb(PortDevice):
 
         self._find_available_port(maxDeviceNum, port, portFormat, timeout, verbose)
 
-        self._serialPort.write("++savecfg 0" + chr(10))
-        self._serialPort.write("++auto 0" + chr(10))
-        self._serialPort.write("++eoi 1" + chr(10))
-        self._serialPort.write("++eos 2" + chr(10))
-        self._serialPort.write("++eot_enable 0" + chr(10))
-        self._serialPort.write("++eot_char 0" + chr(10))
-        self._serialPort.write("++read_tmo_ms 500" + chr(10))
+        self._initialize_prologix_gpi()
+
         if findDevices:
             self._devices = []
             for self._hpib_address in range(0, 31):
@@ -53,6 +48,15 @@ class PrologixGpibUsb(PortDevice):
             self._devices = "Not scanned."
         self._hpib_address = -1
 
+    def _initialize_prologix_gpi(self):
+        self._serialPort.write("++savecfg 0" + chr(10))
+        self._serialPort.write("++auto 0" + chr(10))
+        self._serialPort.write("++eoi 1" + chr(10))
+        self._serialPort.write("++eos 2" + chr(10))
+        self._serialPort.write("++eot_enable 0" + chr(10))
+        self._serialPort.write("++eot_char 0" + chr(10))
+        self._serialPort.write("++read_tmo_ms 500" + chr(10))
+
     def _find_available_port(self, maxDeviceNum, port, portFormat, timeout, verbose):
         while int(self._rematch.group(2)) < maxDeviceNum:
             if verbose: