Pyserial again

Grant Edwards grante at
Tue Mar 7 16:32:47 CET 2006

On 2006-03-07, Steve Holden <steve at> wrote:

>>>Here is my code; why after the readline the port close?
>>>        ser = serial.Serial(0)
>>>        ser.baudrate = 9600
>>>        ser.parity = serial.PARITY_ODD
>>>        ser.stopbits = serial.STOPBITS_TWO
>>>        ser.bytesize =serial.EIGHTBITS
>>>        ser.setRTS(level = 0)
>>>        ser.setDTR(level = 0)
>>>        ser.timeout = 1
>>>        ser.readline()
>>>    Why after this the port close.
>> Because the "ser" object is never used after that point, so it
>> get's garbage collected and deleted.
> ????
> The "ser" name is still bound to the serial object, surely?

I don't see any references to ser after the call to ser.readline().

Do you?  ;)

I was trying to make the point [again] that it's impossible to
to tell what's going on because the OP refuses to post enough
of his code to allow meaningful analysis.  

He's been told at least three times in as many postings that he
needs to post a complete example that demonstrates the problem
he's trying to solve, but he refuses.  I've explained multiple
times that the "excerpts" he's posting aren't sufficient.  He
persists in posting small snippets of mostly-irrelevant code
with no context.

I give up.  

I have a feeling I'm just annoying the mule at this point.

Grant Edwards                   grante             Yow!  It don't mean a
                                  at               THING if you ain't got
                                 that SWING!!

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