Finding errors raised by the Cheetah template engine can be very difficult. It does not give a lot of useful information.
However, the error did not come from the two lines you posted. We can be sure of that because they did not use the operator '<'. Look for a line that uses the less than operator. I would also guess that it will have a variable on the left side of the operator, and an integer on the right. Something like "x < 2". If all else fails, what I do is split the template in half and see if I get an error. If so, I know which half it's in. Split again in half, and so on. Eventually you will isolate it down to the offending line. -tk On Sat, Nov 12, 2022 at 7:56 AM Copain <copai...@gmail.com> wrote: > Many thanks for the continuous develompent of the weewx weather software. > > Currently I am testing weewx 4.9.1 with python 3.9.2 in a virtual machine. > My life system runs weewx 4.4.0 with python 3.7.3. > > On the virtual machine, one of my templates generates the following error: > TypeError: '<' not supported between instances of 'NoneType' and 'int' > > Probably the error originates from either of this code: > #if $day.wind.vecdir.raw is not None and $day.windSpeed.max.raw is not 0 > #if $day.wind.gustdir.raw is not None and $day.wind.max.raw is not 0 > > Is the error handling different in the 2 python or weewx versions? > Or could it come from wind.vecdir which - I believe - is not on the weewx > sqlite3 database? > > How should I correct the code to avoid the error? > > Any help would be appreciated. > Thank you. > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/15b78b92-f1c8-49c6-b3e7-946094aee77dn%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/15b78b92-f1c8-49c6-b3e7-946094aee77dn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zEB8VGjUyY_Y-916qh8kzOpJFjXhfSUjW0cNpKLGw4G%2BEw%40mail.gmail.com.
