Klimalogg skin shows strange number format and no units under Python3

Rainer Lang

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Mar 9, 2021, 2:55:50 AM3/9/21

to weewx-user

Hi

I made a fresh installation of weewx 4.4.0 with Python3 on Debian10 (Raspberry Pi).
And I have the Klimalogg extension installed.

The earlier installation was exactly the same, but ran under Python2.

Use the same weewx.conf, skin.conf, index.html.tmpl and database as before.

Now the sensor values show as 17.433333 instead of 17.4 °C
respectively 46.000000 instead of 46.0 % as they did before. (see attachment).

and no units (like % or °C) shown any more on the snippets (graphs).

The only difference is that weewx now uses Python3 instead of Python2.

I tried my best to look up the formatting in in the .conf files, but there the definitions
look all reasonable: .%1f, .%2f

degree_C = %.1f
degree_F = %.1f

and the labels

degree_C = " °C"
degree_F = " °F"

I assume that the instructions for depiction of numbers and unit denominator in
in index.html.tmpl and skin.conf are interpreted differently under Python3.
Or formatting follows different rules.

Not being a Python expert (know other programming languages quite well though),
I'm stuck here.

How to get a "proper" depiction back under Python3 ?

Advice appreciated.

weewx.conf, skin.conf, index.html.tmpl attached.

Rainer

weewx-kl-p3-numbers.JPG

weewx_.conf

index.html.tmpl

skin.conf

weewx-kl-p3-numbers2.JPG

gjr80

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Mar 9, 2021, 3:54:51 AM3/9/21

to weewx-user

Doesn’t sound like a python2/3 issue but rather a unit group assignment issue. To use the WeeWX formatting and unit conversion each WeeWX field needs to be assigned to to a unit group, eg outTemp is assigned to group_temperature so WeeWX knows that outTemp is a temperature and not a pressure. Unit/formatting flows from that unit group assignment. Looking at your weewx.conf you appear to be using a number of fields that are not in standard unit group assignments. That’s perfectly fine, but you then need to make sure you manually assign those unit groups. This can be done in a number of ways, sometimes it is done with a few lines of code in user/extensions.py or it can be done with some code in a driver or a service (for an example of what I am talking about see Assigning a unit group in the Customization Guide). It should not be done by modifying weewx/units.py. I have no idea how the klimalog driver handles this, but I could certainly see that if it was to be done manually it could easily be lost if re-installing.

Gary

Rainer Lang

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Mar 10, 2021, 6:04:18 AM3/10/21

to weewx...@googlegroups.com

Hi Gary, thanks for he hint

I was digging a bit more - and found an earlier post of yours, which I had already used before as I wanted dewpoint and heatindex to be displayed beyond only sensor 1-4:

https://groups.google.com/g/weewx-user/c/svov51heFp8?pli=1

I did a complete reinstall again with Python2

and found that in the earlier reinstall (P3) my old extensions.py got "lost", overwritten, who knows what.
After creating the respective entries in extensions.py (which I now saved externally), all is back again - to Python2 so far.

The other SD card with the Python3 install will be the next step - and test. So far I only confirmed my old status on P2.

Meanwhile I did the restart with my other SD card (P3 install) - all works fine with sensor map + unit declarations in extensions.py.
Looks like that got lost (as mentioned before) during a backup/new install with P3 - hence the (meanwhile proven wrong) suspicion,
that is was due to P3.

I suggest to have the gist from your above mail included in the Klimalogg Pro readme of Matthew. (see below)
[I took the liberty to complete the sensor map for all dewpoint/heatindex values - the original post had it only for 1-4]

As this is already a 4-year old post, I'm not sure if and how Matthew is available to add this - but it's important information if someone wants heatindex and dewpoint shown and/or is using more than 4 sensors (up to 8 possible). Maybe to be added to the weewx wiki on GitHub under Klimalogg Pro ...

I will add a respective post in the WXforum in the weewx section

--------

it appears that the default setup is that heatindex and dewpoint are not calculated unless you specify them in the a [[sensor_map]] stanza in weewx.conf (preferred) or modify the driver(not advisable). Try adding something like the following to the [KlimaLogg] section of weewx.conf:


        [[sensor_map]]

                temp0 = Temp0

                humidity0 = Humidity0

                heatindex0 = heatindex0

                dewpoint0 = dewpoint0

                temp1 = Temp1

                humidity1 = Humidity1

                heatindex1 = heatindex1

                dewpoint2 = dewpoint1

                temp2 = Temp2

                humidity2 = Humidity2

                heatindex2 = heatindex2

                dewpoint2 = dewpoint2

                temp3 = Temp3

                humidity3 = Humidity3

                heatindex3 = heatindex3

                dewpoint3 = dewpoint3

                temp4 = Temp4

                humidity4 = Humidity4

                heatindex4 = heatindex4

                dewpoint4 = dewpoint4

                temp5 = Temp5

                  humidity5 = Humidity5

                  heatindex5 = heatindex5

                  dewpoint5 = dewpoint45
           
              temp6 = Temp6

                      humidity6 = Humidity6

                      heatindex6 = heatindex6

                      dewpoint6 = dewpoint6
        
              temp7 = Temp4

                    humidity7 = Humidity7

                    heatindex7 = heatindex7

                    dewpoint7 = dewpoint7
           
                    temp8 =
                  Temp8

                        humidity8 = Humidity8

                        heatindex8 = heatindex8

                        dewpoint8 = dewpoint8
           
              rxCheckPercent = SignalQuality

                batteryStatus0 = BatteryStatus0

                batteryStatus1 = BatteryStatus1

                batteryStatus2 = BatteryStatus2

                batteryStatus3 = BatteryStatus3

                batteryStatus4 = BatteryStatus4

                batteryStatus5 = BatteryStatus5

                batteryStatus6 = BatteryStatus6

                batteryStatus7 = BatteryStatus7

                batteryStatus8 = BatteryStatus8
        

          
        

          
        
          
              # to be added to
                  extensions.py in /usr/share/weewx/user

                
              # setup units to support
                  custom Klimalogg sensor map

                from weewx.units
                import obs_group_dict 

                  obs_group_dict['temp0'] = 'group_temperature'

                  obs_group_dict['temp1'] = 'group_temperature'

                  obs_group_dict['temp2'] = 'group_temperature'

                  obs_group_dict['temp3'] = 'group_temperature'

                  obs_group_dict['temp4'] = 'group_temperature'

                  obs_group_dict['temp5'] = 'group_temperature'

                  obs_group_dict['temp6'] = 'group_temperature'

                  obs_group_dict['temp7'] = 'group_temperature'

                  obs_group_dict['temp8'] = 'group_temperature'

                  obs_group_dict['humidity0'] = 'group_percent'

                  obs_group_dict['humidity1'] = 'group_percent'

                  obs_group_dict['humidity2'] = 'group_percent'

                  obs_group_dict['humidity3'] = 'group_percent'

                  obs_group_dict['humidity4'] = 'group_percent'

                  obs_group_dict['humidity5'] = 'group_percent'

                  obs_group_dict['humidity6'] = 'group_percent'

                  obs_group_dict['humidity7'] = 'group_percent'

                  obs_group_dict['humidity8'] = 'group_percent'

                  obs_group_dict['dewpoint0'] = 'group_temperature'

                  obs_group_dict['dewpoint1'] = 'group_temperature'

                  obs_group_dict['dewpoint2'] = 'group_temperature'

                  obs_group_dict['dewpoint3'] = 'group_temperature'

                  obs_group_dict['dewpoint4'] = 'group_temperature'

                  obs_group_dict['dewpoint5'] = 'group_temperature'

                  obs_group_dict['dewpoint6'] = 'group_temperature'

                  obs_group_dict['dewpoint7'] = 'group_temperature'

                  obs_group_dict['dewpoint8'] = 'group_temperature'

                  obs_group_dict['heatindex0'] = 'group_temperature'

                  obs_group_dict['heatindex1'] = 'group_temperature'

                  obs_group_dict['heatindex2'] = 'group_temperature'

                  obs_group_dict['heatindex3'] = 'group_temperature'

                  obs_group_dict['heatindex4'] = 'group_temperature'

                  obs_group_dict['heatindex5'] = 'group_temperature'

                  obs_group_dict['heatindex6'] = 'group_temperature'

                  obs_group_dict['heatindex7'] = 'group_temperature'

                  obs_group_dict['heatindex8'] = 'group_temperature'

                  obs_group_dict['rxCheckPercent'] = 'group_percent'

                  obs_group_dict['batteryStatus0'] = 'group_count'

                  obs_group_dict['batteryStatus1'] = 'group_count'

                  obs_group_dict['batteryStatus2'] = 'group_count'

                  obs_group_dict['batteryStatus3'] = 'group_count'

                  obs_group_dict['batteryStatus4'] = 'group_count'

                  obs_group_dict['batteryStatus5'] = 'group_count'

                  obs_group_dict['batteryStatus6'] = 'group_count'

                  obs_group_dict['batteryStatus7'] = 'group_count'

                  obs_group_dict['batteryStatus8'] = 'group_count'

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