StdCalibrate problem

[ChrisM510]

I'm having an issue with my StdCalibrate in my weewx.conf file. This used to work, but somewhere along the way, it stopped working properly.

Here is my problematic entry.
strike_distance = strike_distance * 0.621371 if Lightning_Strikes > 0 else None

I suspect that the syntax needs to be updated. What happens is that whenever I restart the weewx service, I get phantom entries for lightning.

Any advice is tremendously appreciated! Thanks in advance!!!

[ChrisM510]

Figured it out...if I use 0 instead of Null, it works.