On 11/28/2010 7:55 AM John Smith said...
Can anybody tell me why the handle below is invalid? I'm running Win7.
TIA,
John
Python 2.7 (r27:82525, Jul 4 2010, 07:43:08) [MSC v.1500 64 bit (AMD64)]
on win32
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>>> import serial
>>> ser = serial.Serial('com1', timeout = 5)
What do you get when you add 'print ser' here? The docs at
http://pyserial.sourceforge.net/shortintro.html show you should get
something like
Serial<id=0xa81c10, open=False>(port='COM1', baudrate=19200, bytesize=8,
parity='N', stopbits=1, timeout=None, xonxoff=0, rtscts=0)
So if you're getting an invalid handle error I'd expect you'd get
something different.
Emile
>>> x = ser.read()
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
x = ser.read()
File "E:\Python27\lib\site-packages\serial\serialwin32.py", line 236, in
read
raise SerialException("ReadFile failed (%s)" % ctypes.WinError())
SerialException: ReadFile failed ([Error 6] The handle is invalid.)
>>>
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