Hi -
I've been exercising some changes to the ownet python interface, and
everything seems to be working great. The changes were made because
the existing code had trouble working through a 1-wire hub or DS2409
microlan switch. I've been running with these changes for almost a
week with no issues. Here are the diffs from ownet-0.2 (__init__.py):
339c339
< yield entry.split('/')[2]
---
> yield entry.split('/')[-1]
376c376
< list = filter(lambda x: '/' in x,
self._connection.dir(self._usePath))
---
> list = filter(lambda x: '/' in x,
self._connection.dir(path))
378,379c378,381
< for branch_entry in list.split(','):
< branch_path = self._usePath + '/' + branch
+ '/' + branch_entry.split('/')[0]
---
> namelist = ','.join(list)
> #print 'Sensor.sensors namelist(%s)' % str
(namelist)
> for branch_entry in namelist.split(','):
> #print 'branch_entry(%s)' % str(branch_entry)
381c383
< self._connection.read(branch_path + '/
type')
---
> self._connection.read(branch_entry + '/
type')
384c386
< yield Sensor(branch_path,
connection=self._connection)
---
> yield Sensor(branch_entry,
connection=self._connection)
#
Comments on the changes:
Line 339 is changed to report the last field on the line. For
networks traversing DS2409 couplers, [2] would return multiples of
'main' or 'aux' instead of the attributes of the sensor on the
branch. [-1] correctly returns the attributes no matter how many
levels deep the sensor is. (Although I have not tested nested couplers.)
Line 376 is changed to use the correct path, which includes the name
of the branch (Thanks Peter!)
Lines 378-381 are changed to perform a format conversion in such a
way it can be conveniently split. A commented debug statement is
added, and the assignment of a value to branch_path is removed since
there are no references to it.
Lines 381 and 384 (new lines 383 and 386) are changed to use the
branch entry, instead of the branch path.
With these changes I can successfully do things like:
>>> import ownet
>>> s=ownet.Sensor("/", server="127.0.0.1", port=3002)
>>> sl=s.sensorList()
>>> print sl[3].sensorList()[0].temperature
-1.68056
>>>
This is reporting temperature from a DS18S20 hanging off the main
branch of a DS2409 coupler which is connected to a DS9490 (a bit cool
here today :)
Perhaps you can independently test these changes, and include them in
an upcoming release. My apologies if this is not the proper way to
submit patches. Please let me know if this should be handled
differently. You folks have done the heavy lifting, I'm just trying
to help out as I can.
Best regards and a Happy New Year,
Ziggy
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