diff --git a/serial/serialcli.py b/serial/serialcli.py
index 16af67a..1873a00 100644
--- a/serial/serialcli.py
+++ b/serial/serialcli.py
@@ -23,11 +23,12 @@
 def as_byte_array(string):
     return sab([ord(x) for x in string])  # XXX will require adaption when run with a 3.x compatible IronPython
 
+
 class Serial(SerialBase):
     """Serial port implementation for .NET/Mono."""
 
     BAUDRATES = (50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
-                9600, 19200, 38400, 57600, 115200)
+                 9600, 19200, 38400, 57600, 115200)
 
     def open(self):
         """\
@@ -69,7 +70,7 @@
         if self._timeout is None:
             self._port_handle.ReadTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
         else:
-            self._port_handle.ReadTimeout = int(self._timeout*1000)
+            self._port_handle.ReadTimeout = int(self._timeout * 1000)
 
         # if self._timeout != 0 and self._interCharTimeout is not None:
             # timeouts = (int(self._interCharTimeout * 1000),) + timeouts[1:]
@@ -77,8 +78,7 @@
         if self._write_timeout is None:
             self._port_handle.WriteTimeout = System.IO.Ports.SerialPort.InfiniteTimeout
         else:
-            self._port_handle.WriteTimeout = int(self._write_timeout*1000)
-
+            self._port_handle.WriteTimeout = int(self._write_timeout * 1000)
 
         # Setup the connection info.
         try:
@@ -88,46 +88,46 @@
             raise ValueError(str(e))
 
         if self._bytesize == FIVEBITS:
-            self._port_handle.DataBits     = 5
+            self._port_handle.DataBits = 5
         elif self._bytesize == SIXBITS:
-            self._port_handle.DataBits     = 6
+            self._port_handle.DataBits = 6
         elif self._bytesize == SEVENBITS:
-            self._port_handle.DataBits     = 7
+            self._port_handle.DataBits = 7
         elif self._bytesize == EIGHTBITS:
-            self._port_handle.DataBits     = 8
+            self._port_handle.DataBits = 8
         else:
             raise ValueError("Unsupported number of data bits: %r" % self._bytesize)
 
         if self._parity == PARITY_NONE:
-            self._port_handle.Parity       = getattr(System.IO.Ports.Parity, 'None') # reserved keyword in Py3k
+            self._port_handle.Parity = getattr(System.IO.Ports.Parity, 'None')  # reserved keyword in Py3k
         elif self._parity == PARITY_EVEN:
-            self._port_handle.Parity       = System.IO.Ports.Parity.Even
+            self._port_handle.Parity = System.IO.Ports.Parity.Even
         elif self._parity == PARITY_ODD:
-            self._port_handle.Parity       = System.IO.Ports.Parity.Odd
+            self._port_handle.Parity = System.IO.Ports.Parity.Odd
         elif self._parity == PARITY_MARK:
-            self._port_handle.Parity       = System.IO.Ports.Parity.Mark
+            self._port_handle.Parity = System.IO.Ports.Parity.Mark
         elif self._parity == PARITY_SPACE:
-            self._port_handle.Parity       = System.IO.Ports.Parity.Space
+            self._port_handle.Parity = System.IO.Ports.Parity.Space
         else:
             raise ValueError("Unsupported parity mode: %r" % self._parity)
 
         if self._stopbits == STOPBITS_ONE:
-            self._port_handle.StopBits     = System.IO.Ports.StopBits.One
+            self._port_handle.StopBits = System.IO.Ports.StopBits.One
         elif self._stopbits == STOPBITS_ONE_POINT_FIVE:
-            self._port_handle.StopBits     = System.IO.Ports.StopBits.OnePointFive
+            self._port_handle.StopBits = System.IO.Ports.StopBits.OnePointFive
         elif self._stopbits == STOPBITS_TWO:
-            self._port_handle.StopBits     = System.IO.Ports.StopBits.Two
+            self._port_handle.StopBits = System.IO.Ports.StopBits.Two
         else:
             raise ValueError("Unsupported number of stop bits: %r" % self._stopbits)
 
         if self._rtscts and self._xonxoff:
-            self._port_handle.Handshake  = System.IO.Ports.Handshake.RequestToSendXOnXOff
+            self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSendXOnXOff
         elif self._rtscts:
-            self._port_handle.Handshake  = System.IO.Ports.Handshake.RequestToSend
+            self._port_handle.Handshake = System.IO.Ports.Handshake.RequestToSend
         elif self._xonxoff:
-            self._port_handle.Handshake  = System.IO.Ports.Handshake.XOnXOff
+            self._port_handle.Handshake = System.IO.Ports.Handshake.XOnXOff
         else:
-            self._port_handle.Handshake  = getattr(System.IO.Ports.Handshake, 'None')   # reserved keyword in Py3k
+            self._port_handle.Handshake = getattr(System.IO.Ports.Handshake, 'None')   # reserved keyword in Py3k
 
     #~ def __del__(self):
         #~ self.close()
@@ -242,7 +242,7 @@
         if not self._port_handle:
             raise portNotOpenError
         #~ return self._port_handle.XXX
-        return False #XXX an error would be better
+        return False  # XXX an error would be better
 
     @property
     def cd(self):