Ensure working with bytes in write() calls. to_bytes() extended to handle bytes and memoryview instaces

git-svn-id: http://svn.code.sf.net/p/pyserial/code/trunk/pyserial@479 f19166aa-fa4f-0410-85c2-fa1106f25c8a

1 files changed, 2 insertions, 2 deletions

diff --git a/serial/serialposix.py b/serial/serialposix.py
index fa5c999..ce1ff21 100644
--- a/serial/serialposix.py
+++ b/serial/serialposix.py
@@ -488,8 +488,8 @@ class PosixSerial(SerialBase):
     def write(self, data):
         """Output the given string over the serial port."""
         if not self._isOpen: raise portNotOpenError
-        tx_len = len(data)
-        d = data
+        d = to_bytes(data)
+        tx_len = len(d)
         if self._writeTimeout is not None and self._writeTimeout > 0:
             timeout = time.time() + self._writeTimeout
         else: