On Wednesday, March 29, 2017 at 6:03:39 AM UTC-4, Andrew Potter wrote:
>
> Mar 29 20:04:01 raspberrypi weewx[6167]:     ****    File 
> "/usr/share/weewx/user/swb.py", line 52, in <module>
> Mar 29 20:04:01 raspberrypi weewx[6167]:     ****     
>  weewx.accum.extract_dict['grid_energy'] = weewx.accum.Accum.sum_extract
> Mar 29 20:04:01 raspberrypi weewx[6167]:     ****  AttributeError: type 
> object 'Accum' has no attribute 'sum_extract'
> Mar 29 20:04:01 raspberrypi weewx[6167]:     ****  Exiting.
>
> What have I missed?
>

andrew,

i think this is due to a change in the Accum object in weewx 3.7.0

in the weewx-swb driver file swb.py, please change line 52 from this:

weewx.accum.extract_dict['grid_energy'] = weewx.accum.Accum.sum_extract

to this:

weewx.accum.extract_dict['grid_energy'] = weewx.accum.Accum.extract_sum

maybe tom could chime in about providing some backward compatibility in 
accum.py...

m

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