ERROR weewx.cheetahgenerator: Generate failed with exception '<type 'exceptions.UnicodeDecodeError'>'

[frahugras]

Hello dears, i've installed another PSW system using WeeWX and Belchertown skin (amazing...); but this time i face this error and after several night time debugging hours no matter solve/understand it; can you please help? thanks! Fra

Aug 17 15:25:48 kittyhawk weewx[901] DEBUG weewx.reportengine: Running report 'StandardReport'
Aug 17 15:25:48 kittyhawk weewx[901] DEBUG weewx.reportengine: Found configuration file /etc/weewx/skins/Belchertown/skin.conf for report 'StandardReport'
Aug 17 15:25:48 kittyhawk weewx[901] DEBUG weewx.cheetahgenerator: Using search list ['weewx.cheetahgenerator.Almanac', 'weewx.cheetahgenerator.Station', 'weewx.cheetahgenerator.Current', 'weewx.cheetahgenerator.Stats', 'weewx.cheetahgenerator.UnitInfo', 'weewx.cheetahgenerator.Extras', 'weewx.cheetahgenerator.JSONHelpers', u'user.belchertown.getData']
Aug 17 15:25:48 kittyhawk weewx[901] DEBUG weewx.manager: Daily summary version is 4.0
Aug 17 15:25:49 kittyhawk weewx[901] INFO weewx.restx: PWSWeather: Published record 2022-08-17 15:25:00 CEST (1660742700)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: Generate failed with exception '<type 'exceptions.UnicodeDecodeError'>'
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** Ignoring template /etc/weewx/skins/Belchertown/json/weewx_data.json.tmpl
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** Reason: 'utf8' codec can't decode byte 0xec in position 16: unexpected end of data
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** Traceback (most recent call last):
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/cheetahgenerator.py", line 326, in generate
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** unicode_string = compiled_template.respond()
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "_etc_weewx_skins_Belchertown_json_weewx_data_json_tmpl.py", line 2785, in respond
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/cheetahgenerator.py", line 691, in filter
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** filtered = six.text_type(val)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/tags.py", line 452, in unicode
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** return unicode(vh)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/units.py", line 1169, in unicode
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** return self.toString()
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/units.py", line 1159, in toString
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** localize=localize)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/units.py", line 840, in toString
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** s = self._to_string(val_t, context, addLabel, useThisFormat, None_string, localize)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/weewx/units.py", line 900, in _to_string
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** val_ustr = six.ensure_text(val_str)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/share/weewx/six.py", line 941, in ensure_text
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** return s.decode(encoding, errors)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** return codecs.utf_8_decode(input, errors, True)
Aug 17 15:25:49 kittyhawk weewx[901] ERROR weewx.cheetahgenerator: **** UnicodeDecodeError: 'utf8' codec can't decode byte 0xec in position 16: unexpected end of data
Aug 17 15:25:50 kittyhawk weewx[901] INFO weewx.cheetahgenerator: Generated 10 files for report StandardReport in 1.55 seconds
Aug 17 15:25:50 kittyhawk weewx[901] INFO weewx.reportengine: Copied 2 files to /var/www/html/weewx
Aug 17 15:25:50 kittyhawk weewx[901] DEBUG weewx.manager: Daily summary version is 4.0
Aug 17 15:25:50 kittyhawk weewx[901] DEBUG root: Start time is 1660687200 and end time is 1660773600
Aug 17 15:25:50 kittyhawk weewx[901] DEBUG root: Interval is: 300
Aug 17 15:25:53 kittyhawk weewx[901] DEBUG weewx.reportengine: Report 'Belchertown' not enabled. Skipping.
Aug 17 15:25:53 kittyhawk weewx[901] DEBUG weewx.reportengine: Report 'FTP' not enabled. Skipping.
Aug 17 15:25:53 kittyhawk weewx[901] DEBUG weewx.reportengine: Report 'RSYNC' not enabled. Skipping.

[norecords]

what version of Weewx and Belchertown do you use ?
I can see that you have python 2.7 in use, did you try with python 3 ?

[frahugras]

Hello,

i’ve managed to follow suggestion; please check attached logs; unfortunately error is still there

I see

Aug 23 11:57:48 kittyhawk weewx[864] INFO main: Initializing weewx version 4.5.1
Aug 23 11:57:48 kittyhawk weewx[864] INFO main: Using Python 2.7.16 (default, Oct 10 2019, 22:02:15) #12[GCC 8.3.0]
Aug 23 11:57:48 kittyhawk weewx[864] INFO main: Platform Linux-5.10.63-v7+-armv7l-with-debian-10.11
Aug 23 11:57:48 kittyhawk weewx[864] INFO main: Locale is 'it_IT'

Despite configuration, server reboot, weewx is still using python 2

actually is a not relevant issue since weewx is skipping template, my meteo server is working normally

it is just my curiosity on what can be issue/root cause

thanks for your help!

2.txt
1.txt

[norecords]

Look at /etc/default/weewx if is set to python 2

WEEWX_PYTHON=python2    <== change to python3
WEEWX_BINDIR=/usr/share/weewx
WEEWX_BIN=/usr/bin/weewxd
WEEWX_CFG=/etc/weewx/weewx.conf

See that thread, you may also need to install libs like paho-mqtt for python 3

[frahugras]

Hello,

thanks, after setting phyton3 into weewx environment variables, i've rebooted server: no more errors are populating logs: actually i didnt notice i was using old python2; and it was not necessary install mqtt library (at least in my scenario)

really thanks for your help/time

br
Fra

[norecords]

Can you set this thread has answered. Thanks you too.

[frahugras]

done :)