Problem writing a search list extension

[Mike Hawkins]

Hi,

I'm hoping somebody can point out what I'm doing wrong here, it's probably trivial but I'm tearing my hair out and have no idea where things are going wrong.

I have several stations and therefore several databases, so I wanted a version of the $alltime tag provided by the example stats.py or xstats.py that would take a data_binding.  With some searching I came up with this

"""

"""

import weewx.units

from weewx.cheetahgenerator import SearchList

from weewx.tags import TimespanBinder, TimeBinder

from weeutil.weeutil import TimeSpan

class MyStats(SearchList):

    def __init__(self, generator):

        SearchList.__init__(self, generator)

    def get_extension_list(self, timespan, db_lookup):

        class DBBinder(TimeBinder):

            # "alltime", with optional parameter data_binding

            def alltime(self, data_binding=None):

                return TimespanBinder(timespan,

                                      self.db_lookup,

                                      context='year',

                                      data_binding=data_binding,

                                      formatter=self.formatter,

                                      converter=self.converter)

        binder = DBBinder(db_lookup,

                          timespan,

                          self.generator.formatter,

                          self.generator.converter)

        return [binder]

which works perfectly if the report is generated via wee_reports.

However it fails in the normal report run with:

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine: Caught unrecoverable exception in generator 'weewx.cheetahgenerator.CheetahGenerator'

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****  name 'weewx' is not defined

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****  Traceback (most recent call last):

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/reportengine.py", line 197, in run

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      obj.start()

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/reportengine.py", line 280, in start

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      self.run()

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/cheetahgenerator.py", line 150, in run

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      ngen = self.generate(gen_dict[section_name], self.gen_ts)

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/cheetahgenerator.py", line 220, in generate

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      ngen += self.generate(section[subsection], gen_ts)

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/cheetahgenerator.py", line 220, in generate

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      ngen += self.generate(section[subsection], gen_ts)

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/cheetahgenerator.py", line 308, in generate

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      searchList = self._getSearchList(encoding, timespan,

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/weewx/cheetahgenerator.py", line 376, in _getSearchList

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****      searchList += obj.get_extension_list(timespan, db_lookup)

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****    File "/weewx/package/weewx-4.1.0/bin/user/mstats.py", line 18, in get_extension_list

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****  NameError: name 'weewx' is not defined

Jul 26 09:50:17 bee weewx-weewx[192470] ERROR weewx.reportengine:         ****  Generator terminated

Jul 26 09:50:17 bee weewx-weewx[192470] INFO weewx.reportengine: Copied 0 files to /weewx/www/live

Other than this problem my weewx config is quite happy and the other extensions are working fine so I don't think there is anything fundamentally wrong with my setup even though it is in a non-standard location.

Any pointers very gratefully received.

Best

Mike

https://duckrising.com/weewx/

[Mike Hawkins]

Drat,

I knew it was going to be trivial.  Turn it off and on again and everything works now.

Sorry

Mike

https://duckrising.com/weewx/

[Tom Keffer]

I tried your file mstats.py on my machine, and it worked fine. Perhaps it is a PYTHONPATH problem?

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