Serial Port Issue

[chandan kumar]

Thanks Phil,You are right .with Port=20 it started working.
Regards,Chandan.

--- On Mon, 22/4/13, Phil Birkelbach <phil at petrasoft.net> wrote:

From: Phil Birkelbach <phil at petrasoft.net>
Subject: Re: Serial Port Issue
To: python-list at python.org
Cc: "chandan kumar" <chandan_psr at yahoo.co.in>
Date: Monday, 22 April, 2013, 8:43 PM

Have you tried 'port=20'?
The documentation says that the port numbering starts at zero.  I don't use Windows so I can't test it for you.
You could also try port="COM21"
Phil
On Apr 22, 2013, at 4:34 AM, chandan kumar wrote:
Hi,
I'm new to python and trying to learn serial communication using python.In this process i'm facing serial port issues.Please find the attached COMPorttest.py file ,correct me if anything wrong in the code.With my code it's always goes in to exception.I noted down the the COM port number  from windows device manager list. 
Operating system: XPPython Ver: 2.5Pyserial: 2.5
Even i tried from python shell passing below
 commands
import serialser=ser=serial.Serial(port=21,baudrate=9600)
I observe below error on python shell
File "C:\Python25\lib\serial\serialwin32.py", line 55, in open    raise SerialException("could not open port: %s" % msg)SerialException: could not open port: (2, 'CreateFile', 'The system cannot find the file specified.')
Thanks in advance.
Best Regards,Chandan.


<COMPortTest.py><DeviceManager.PNG>-- 
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