There was a problem with an umlaut in install.py. I replaced 'ü' by 'ue' and hope that helps. See issue #1 <https://github.com/roe-dl/weewx-GTS/issues/1>
Karen K schrieb am Montag, 22. Februar 2021 um 17:42:43 UTC+1: > Hallo Tom, to give the user some instructions I wrote a README file > describing how to install and include the extension in skins. Do you think > it is enough and to understand? > README file <https://github.com/roe-dl/weewx-GTS/blob/master/README.md> > > Karen K schrieb am Samstag, 20. Februar 2021 um 17:08:47 UTC+1: > >> That is, how it is now (install.py not tested by now): >> https://github.com/roe-dl/weewx-GTS >> >> Karen K schrieb am Donnerstag, 18. Februar 2021 um 22:31:27 UTC+1: >> >>> I filed an issue for the record-is-None-problem there: #583 >>> <https://github.com/poblabs/weewx-belchertown/issues/583> >>> >>> Karen K schrieb am Donnerstag, 18. Februar 2021 um 21:42:24 UTC+1: >>> >>>> Hi Tom, you are right. I changed the code that it returns the last >>>> value if record is None, and immediately Belchertown skin shows the value. >>>> >>>> I considered your comments about dangers by comparing the timestamp of >>>> the last value with the actual time time.time(). If the value is too >>>> old an error is raised rather than a value returned. And I let the program >>>> complain to the log, that record is None. >>>> >>>> Skin with included GTS value <https://www.woellsdorf-wetter.de> >>>> Tom Keffer schrieb am Donnerstag, 18. Februar 2021 um 19:25:48 UTC+1: >>>> >>>>> That's one solution, but it has lots of dangers. The record could be >>>>> hours old. >>>>> >>>>> NB: if you want to do that, it's easy enough to code up a custom >>>>> version of get_scalar() that does this. If it detects a record of None, >>>>> it >>>>> gets the latest record from the database, then calls >>>>> weewx.xtypes.get_scalar() with that. >>>>> >>>>> >>>>> On Thu, Feb 18, 2021 at 10:18 AM Karen K <[email protected]> wrote: >>>>> >>>>>> Thank you for your extensive support! >>>>>> >>>>>> Could it be, that get_scalar() in other classes (especially in the >>>>>> basic ones) simply provide the last available value, if record is None? >>>>>> >>>>>> I could code it that way, but I am not sure, whether it is a good >>>>>> idea or not. >>>>>> >>>>>> Tom Keffer schrieb am Donnerstag, 18. Februar 2021 um 17:51:45 UTC+1: >>>>>> >>>>>>> Hi, Karen. Looks like you are making steady progress. >>>>>>> >>>>>>> This is a bug in the Belchertown skin that I alluded to in another >>>>>>> thread >>>>>>> <https://groups.google.com/g/weewx-user/c/fKVxr07vMuE/m/I-PdDb7vBgAJ> >>>>>>> . >>>>>>> >>>>>>> In a convoluted way, the skin is asking for a value from xtypes >>>>>>> using the call >>>>>>> >>>>>>> xtype.get_scalar(obs_type, record, db_manager) >>>>>>> >>>>>>> >>>>>>> (Side note: the actual request is done through a getattr() query of >>>>>>> a weewx.tags.CurrentObj object). >>>>>>> >>>>>>> Unfortunately, the value for record as provided by the Belchertown >>>>>>> skin is None. In theory, the xtypes extension could look up the values >>>>>>> it >>>>>>> needs from the database, but that would require knowing the time, but >>>>>>> with >>>>>>> record equal to None, that's not possible either. >>>>>>> >>>>>>> The Belchertown skin needs to provide the current record. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Thu, Feb 18, 2021 at 8:39 AM Karen K <[email protected]> wrote: >>>>>>> >>>>>>>> My XType extension is working in principle now. It calculates, and >>>>>>>> it delivers values, if there is $current.GTS, $latest.GTS, $day.GTS >>>>>>>> or $yesterday.GTS included in the skin definition. Also, images >>>>>>>> are generated showing the value over time. All is fine so far. >>>>>>>> >>>>>>>> Then I included the value in the Belchertown skin observation list. >>>>>>>> And I got an error message. It turned out, that it is possible that >>>>>>>> get_scalar() is called with *record is None*. From documentation I >>>>>>>> thought otherwise. That was confusing. >>>>>>>> >>>>>>>> As I included "if record is None: raise >>>>>>>> weewx.CannotCalculate(obs_type)" into get_scalar() no error >>>>>>>> message was logged any more. But no value was displayed in Belchertown >>>>>>>> skin. Again: if I include "$current.GTS" into the skin, the value >>>>>>>> is displayed. If I include the value in the observation list in >>>>>>>> skin.conf, >>>>>>>> it is not. I looked around and found out that Belchertown skin gets >>>>>>>> the >>>>>>>> value from calling weewx.tags.CurrentObj()within their special >>>>>>>> extension "belchertown.py" That seems to not include GTS value. >>>>>>>> >>>>>>>> So I am not sure what to do next. >>>>>>>> >>>>>>>> -- >>>>>>>> >>>>>>> You received this message because you are subscribed to the Google >>>>>>>> Groups "weewx-development" group. >>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>> send an email to [email protected]. >>>>>>>> >>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/weewx-development/bf89f27d-abb4-4943-a2a9-e3ffbf1a8606n%40googlegroups.com >>>>>>>> >>>>>>>> <https://groups.google.com/d/msgid/weewx-development/bf89f27d-abb4-4943-a2a9-e3ffbf1a8606n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>> . >>>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "weewx-development" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> >>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/weewx-development/4caf593c-5f43-4c21-bb44-37867f803e52n%40googlegroups.com >>>>>> >>>>>> <https://groups.google.com/d/msgid/weewx-development/4caf593c-5f43-4c21-bb44-37867f803e52n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- You received this message because you are subscribed to the Google Groups "weewx-development" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-development/da905098-f98c-4b88-b781-e268804019e8n%40googlegroups.com.
