Actually *outTemp = 44 if outTemp in locals() else None*
yields *None* when *outTemp * is there. Since we are looking for the key '*outTemp' *and not it's value, our expression needs to be: *outTemp = 44 if 'outTemp' in locals() else None* Tom Keffer schrieb am Samstag, 9. März 2024 um 03:22:24 UTC+1: > The facility uses the Python function eval > <https://docs.python.org/3/library/functions.html#eval>. A dictionary > with key 'math' and value the math module is passed in for *globals*. The > record is passed in for *locals*. So, you could use the expression > > *outTemp = 44 if outTemp in locals() else None* > > > > > On Fri, Mar 8, 2024 at 3:33 PM Graham Eddy <g...@geddy.au> wrote: > >> oops, python syntax would be: expr if ops_tye in globals() else None >> *⊣GE⊢* >> >> On 9 Mar 2024, at 10:31 am, Graham Eddy <g...@geddy.au> wrote: >> >> i think ' if obs_type in globals() then expr else None ' would work >> *⊣GE⊢* >> >> On 9 Mar 2024, at 9:13 am, 'michael.k...@gmx.at' via weewx-user < >> weewx...@googlegroups.com> wrote: >> >> I think I remember that this has been asked before, how to check with an >> expression in Corrections, if an obs_type is present? >> >> -- >> 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+...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/ae1bbcf8-23b1-475e-8749-62286df24fb0n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/weewx-user/ae1bbcf8-23b1-475e-8749-62286df24fb0n%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+...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/weewx-user/0507D046-7EED-4A96-8F28-038B70BECEC7%40geddy.au >> >> <https://groups.google.com/d/msgid/weewx-user/0507D046-7EED-4A96-8F28-038B70BECEC7%40geddy.au?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/5c1198a9-1540-4630-969a-4d998ec91eebn%40googlegroups.com.
