All done again and now no complaint about ow but I get:
./temperature.py u
DEFAULT: ow_ds9490.c:DS9490_detect(268) Unclear what <> means in USB
specification, will use first adapter.
DEFAULT: ow_usb_msg.c:DS9490_open(263) Opened USB DS9490 bus master at 7:2.
DEFAULT: ow_usb_cycle.c:DS9490_ID_this_master(191) Set DS9490 7:2 unique id
to 81 FC 58 2B 00 00 00 EA
Exception RuntimeError: 'maximum recursion depth exceeded while calling a
Python object' in <type 'exceptions.AttributeError'> ignored
/21.B5FB22000000 23
when I run this code:
#! /usr/bin/env python
"""
::BOH
$Id: temperature.py,v 1.2 2005/01/20 06:44:30 peterk Exp $
Copyright (c) 2004 Peter Kropf. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
::EOH
Find all temperature sensors (DS1921) and print out their current
temperature reading.
"""
import sys
import ow
def temperature( ):
root = ow.Sensor( '/' )
for sensor in root.find( type = 'DS1921' ):
print sensor._path, sensor.temperature
if __name__ == "__main__":
if len( sys.argv ) == 1:
print 'usage: temperature.py u|serial_port_path'
sys.exit( 1 )
else:
ow.init( sys.argv[ 1 ] )
temperature( )
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