See if this
<https://stackoverflow.com/questions/70729330/python-on-m1-mbp-trying-to-connect-to-usb-devices-nobackenderror-no-backend-a>
answers your question.
On Sat, Dec 14, 2024 at 2:23 PM andi klein
<[email protected]> wrote:
I installed weewx 5.1 for a friend on an
iMac M1. While running just weewxd
everything works great, I get connected
andc all the info is correct in the
terminal: (One thing I noted is that I need
to run under bash and not his default zsh).
Thanks for any help, I spent two days
scratching my head and googling.
LOOP: 2024-12-14 14:16:53 PST
(1734214613) 'altimeter':
'29.553886849491384', 'appTemp': 'None',
'barometer': 'None', 'channel': '3',
'cloudbase': 'None', 'dateTime':
'1734214613', 'dewpoint': 'None', 'ET':
'None', 'heatindex': 'None', 'humidex':
'None', 'inDewpoint': 'None', 'inTemp':
'65.84000257760286', 'maxSolarRad':
'105.00260614815654',
'outTempBatteryStatus': '0', 'pressure':
'29.236533249218752', 'rain': 'None',
'rain_total': '129.94639999999998',
'rainRate': '0.0', 'rssi': '3',
'rxCheckPercent': '100.0',
'sensor_battery': '0', 'sensor_id': '3433',
'usUnits': '1', 'windchill': 'None',
'windDir': '45.0', 'windrun': 'None',
'windSpeed': '2.678862142244647'
If I try to run it as a daemon with
launchctl it bombs on me with backend not
found:
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Using Python: 3.9.6 (default, Nov
11 2024, 03:15:38)
[Clang 16.0.0 (clang-1600.0.26.6)]
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Located at:
/Users/xxx/weewx-venv/bin/python3
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Platform:
macOS-14.6.1-arm64-arm-64bit
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Locale: 'C/UTF-8/C/C/C/C'
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Entry path:
/Users/xxx/weewx-venv/lib/python3.9/site-packages/weewxd.py
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: WEEWX_ROOT: /Users/xxx/weewx-data
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Config
file:/Users/xxx/weewx-data/weewx.conf
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: User
module:/Users/xxx/weewx-data/bin/user
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Debug:0
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: User: root
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Group:wheel
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Groups: wheel daemon kmem sys tty
operator procview procmod everyone staff
certusers localaccou
nts admin com.apple.sharepoint.group.1
_appstore _lpadmin _lpoperator _developer
_analyticsusers com.apple.access_ftp
com.apple.access_screensharing c
om.apple.access_ssh com.apple.access_remote_ae
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Loading station type AcuRite
(weewx.drivers.acurite)
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.drivers.acurite: driver version is 0.4
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.drivers.acurite: R2 will be decoded
using sensor constants
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: StdConvert target unit is 0x1
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.wxservices: StdWXCalculate will use
data binding wx_binding
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Archive will use data binding
wx_binding
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Record generation will be
attempted in 'hardware'
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Using archive interval of 300
seconds (specified in weewx configuration)
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: StationRegistry: Registration
not requested.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: Wunderground: Posting not enabled.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: PWSweather: Posting not enabled.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: CWOP: Posting not enabled.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: WOW: Posting not enabled.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.restx: AWEKAS: Posting not enabled.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: 'pyephem' not detected,
extended almanac data is not available
2024-12-14 13:17:00 weewxd[2083]: INFO
__main__: Starting up weewx version 5.1.0
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Using binding 'wx_binding' to
database 'weewx.sdb'
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.manager: Starting backfill of daily
summaries
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.manager: Empty database
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Starting main packet loop.
2024-12-14 13:17:00 weewxd[2083]: INFO
weewx.engine: Main loop exiting. Shutting
engine down.
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: Caught unrecoverable exception:
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: ****No backend available
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: ****Traceback (most recent call
last):
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: ****File
"/Users/xxx/weewx-venv/lib/python3.9/site-packages/weewxd.py",
line
127, in main
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: ****engine.run()
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: ****raise NoBackendError('No
backend available')
2024-12-14 13:17:00 weewxd[2083]: CRITICAL
__main__: **** usb.core.NoBackendError:
No backend available
:
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