I installed the xstats extension into weewx v3.6.2 on Xubuntu.
I want to output the total heating degree days over the last seven days; so
I put $seven_day.heatdeg.sum in my tmpl file. The template is not processed
and I find the following in syslog:
Mar 8 02:10:16 localhost weewx[1100]: cheetahgenerator: Generate failed
with exception '<type 'exceptions.KeyError'>'
Mar 8 02:10:16 localhost weewx[1100]: cheetahgenerator: **** Ignoring
template /etc/weewx/skins/Standard/week.html.tmpl
Mar 8 02:10:16 localhost weewx[1100]: cheetahgenerator: **** Reason:
'skin_dict'
Mar 8 02:10:16 localhost weewx[1100]: **** Traceback (most recent call
last):
Mar 8 02:10:16 localhost weewx[1100]: **** File
"/usr/share/weewx/weewx/cheetahgenerator.py", line 315, in generate
Mar 8 02:10:16 localhost weewx[1100]: **** print >> _file, text
Mar 8 02:10:16 localhost weewx[1100]: **** File
"/usr/lib/python2.7/dist-packages/Cheetah/Template.py", line 1005, in
__str__
Mar 8 02:10:16 localhost weewx[1100]: **** rc = getattr(self,
mainMethName)()
Mar 8 02:10:16 localhost weewx[1100]: **** File
"cheetah__etc_weewx_skins_Standard_week_html_tmpl_1488957016_4_67084.py",
line 1115, in respond
Mar 8 02:10:16 localhost weewx[1100]: **** File
"cheetah__etc_weewx_skins_Standard_week_html_tmpl_1488957016_4_67084.py",
line 469, in __errorCatcher58
Mar 8 02:10:16 localhost weewx[1100]: **** File "<string>", line 1, in
<module>
Mar 8 02:10:16 localhost weewx[1100]: **** File
"/usr/share/weewx/weewx/tags.py", line 323, in __getattr__
Mar 8 02:10:16 localhost weewx[1100]: **** return
self._do_query(aggregate_type)
Mar 8 02:10:16 localhost weewx[1100]: **** File
"/usr/share/weewx/weewx/tags.py", line 337, in _do_query
Mar 8 02:10:16 localhost weewx[1100]: **** val=val,
**self.option_dict)
Mar 8 02:10:16 localhost weewx[1100]: **** File
"/usr/share/weewx/weewx/wxmanager.py", line 67, in getAggregate
Mar 8 02:10:16 localhost weewx[1100]: **** units_dict =
option_dict['skin_dict'].get('Units', {})
Mar 8 02:10:16 localhost weewx[1100]: **** KeyError: 'skin_dict'
The same thing happens for $seven_day.cooldeg.sum, $seven_day.heatdeg.avg,
and $seven_day.cooldeg.avg. It also fails for $thirty_day.
If I use $week.heatdeg.sum it works just fine. Everything else I've tried
with $seven_day works finee.
I don't think I changed anything in xstats.py, but attached is the
xstats.py installed in /usr/share/weewx/user.
Is there something missing from xstats.py needed to support heatdeg/cooldeg?
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#
# Copyright (c) 2009-2015 Tom Keffer <tkef...@gmail.com>
#
# See the file LICENSE.txt for your full rights.
#
"""Extended stats based on the xsearch example
This search list extension offers extra tags:
'alltime': All time statistics.
'seven_day': Statistics for the last seven days.
'thirty_day': Statistics for the last thirty days.
You can then use tags such as $alltime.outTemp.max for the all-time max
temperature, or $seven_day.rain.sum for the total rainfall in the last seven
days, or $thirty_day.wind.max for maximum wind speed in the past thirty days.
"""
import datetime
import time
from weewx.cheetahgenerator import SearchList
from weewx.tags import TimespanBinder
from weeutil.weeutil import TimeSpan
class ExtendedStatistics(SearchList):
def __init__(self, generator):
SearchList.__init__(self, generator)
def get_extension_list(self, timespan, db_lookup):
"""Returns a search list extension with additions.
timespan: An instance of weeutil.weeutil.TimeSpan. This holds
the start and stop times of the domain of valid times.
db_lookup: Function that returns a database manager given a
data binding.
"""
# First, create a TimespanBinder object for all time. This one is easy
# because the object timespan already holds all valid times to be
# used in the report.
all_stats = TimespanBinder(timespan,
db_lookup,
context='alltime',
formatter=self.generator.formatter,
converter=self.generator.converter)
# Now create a TimespanBinder for the last seven days. This one we
# will have to calculate. First, calculate the time at midnight, seven
# days ago. The variable week_dt will be an instance of datetime.date.
week_dt = datetime.date.fromtimestamp(timespan.stop) - datetime.timedelta(weeks=1)
# Now convert it to unix epoch time:
week_ts = time.mktime(week_dt.timetuple())
# Now form a TimeSpanStats object, using the time span just calculated:
seven_day_stats = TimespanBinder(TimeSpan(week_ts, timespan.stop),
db_lookup,
context='seven_day',
formatter=self.generator.formatter,
converter=self.generator.converter)
# Now use a similar process to get statistics for the last 30 days.
days_dt = datetime.date.fromtimestamp(timespan.stop) - datetime.timedelta(days=30)
days_ts = time.mktime(days_dt.timetuple())
thirty_day_stats = TimespanBinder(TimeSpan(days_ts, timespan.stop),
db_lookup,
context='thirty_day',
formatter=self.generator.formatter,
converter=self.generator.converter)
return [{'alltime': all_stats,
'seven_day': seven_day_stats,
'thirty_day': thirty_day_stats}]
# For backwards compatibility:
ExtStats = ExtendedStatistics
