Well it's reassuring to know that it is not just me :)
I have been testing some more and with multiple devices it seems to
rename some and then fail part way through. I have code that list all
of the devices, the fields and their values. If I run that after a
rename failure that fails as well.
Now that I know about it I can work around it.
Thanks
Mick
On 08/09/16 15:42, Stefano Miccoli wrote:
> From the python point of view it’s OK…
>
> I think it’s an owserver bug (or feature, I do not know ;-) since I have
> your very same behaviour.
>
> S
>
>> On 08 Sep 2016, at 00:03, Mick Sulley <m...@sulley.info> wrote:
>>
>> Stefano,
>> I took your ex.py and modified it slightly to use a variable as the base
>> device name -
>>
>> ==========================
>> import sys
>> import time
>> import pyownet.protocol
>>
>> TIMEOUT = 10
>>
>> def main():
>>
>> timeout_time = time.time() + TIMEOUT
>> while time.time() < timeout_time:
>> try:
>> owp = pyownet.protocol.proxy()
>> except pyownet.protocol.ConnError:
>> time.sleep(1)
>> else:
>> break
>> else:
>> # Error! creation of owp has timed out
>> sys.exit('Unable to open connection to owserver')
>> # Success! we have a connection to owserver
>> assert owp.present('/')
>>
>> name = 'sensor'
>>
>> for i, sens in enumerate(owp.dir()):
>> print 'i = ', i, ' sens = ', sens
>> owp.write(sens+'alias', name + '%d' % i)
>>
>> for j in range(i):
>> assert owp.present(name + '%d' % j)
>>
>> for f in owp.dir():
>> print 'f = ', f
>>
>> if __name__ == '__main__':
>> main()
>> ==========================
>>
>> I have tested this and it works, but if I change line 23 to
>> name = 'Xsensor'
>> and run it again I get
>>
>> $ ./ex.py
>> i = 0 sens = /sensor0/
>> i = 1 sens = /sensor1/
>> Traceback (most recent call last):
>> File "./ex.py", line 39, in <module>
>> main()
>> File "./ex.py", line 30, in main
>> owp.write(sens+'alias', name + '%d' % i)
>> File "/usr/local/lib/python2.7/dist-packages/pyownet/protocol.py",
>> line 636, in write
>> raise OwnetError(-ret, self.errmess[-ret], path)
>> pyownet.protocol.OwnetError: [Errno 1] Startup - command line parameters
>> invalid: u'/sensor1/alias'
>>
>> Is there some reason why I cannot change an alias a second time? Have I
>> done something stupid?
>>
>> Thanks
>> Mick
>>
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