Purple Air AQI Solution found but can't get it to work

Developers WeatherFlow PiConsole
23

I think I duplicated your issue.

I pulled out my SD card with wfpiconsole on it and updated the console version to the current version to retest.

The test:

  • I set the PurpleAir panel as panel1 (primary) it works just fine…
  • and when I click on the button bottom-left to go to the Secondary PanelOne it works…
  • BUT…when I click again on the button bottom-left to go ‘back’ to the custom panel it throws that same error you are experiencing…

@peter can you take a look at this code please and chime in here ?

#-----------------------------
# user/customPanels.py
#------------------------------
from kivy.uix.relativelayout import RelativeLayout
from panels.template         import panelTemplate
from kivy.properties         import Clock
from kivy.properties         import StringProperty

import requests
import json

#-----------------------------------
# do all the grabbing the data here
#-----------------------------------
class ExamplePanel(panelTemplate):

    def __init__(self,**kwargs):
        super().__init__(**kwargs)
        self.updateData()
        Clock.schedule_interval(self.updateData,59)

    def updateData(self, *args):

        data = self.get_data()

        # set the kivy panel element text
        self.ids.example_label.text = data

    def get_data(self):

        try:
            # API endpoint URL for a PurpleAir AQI sensor
            url = "http://192.168.2.33/json"
            return str(response['current_temp_f'])
        except:
            return "n/a"



#---------------------------------------
# user/customPanels.kv
#---------------------------------------

<ExamplePanel>:
    PanelBackground:
        _panelTitle: 'PurpleAir AQI'
    Label:
        id: example_label
        text: ''
        pos_hint: {'x': 0, 'y': 0}
        size_hint: (1, 1)
        font_name: 'fonts/Inter-Bold.ttf'
        font_size: dp(100*app.scaleFactor)
        color: utils.rgba('#ff0404ff')
        valign: 'center'
        halign: 'center'
        markup: 1
<ExampleButton>:
    PanelButton:
        text: 'Example'
        on_release: app.CurrentConditions.switchPanel(self)

To save you the research, I based mine on Custom panel to display tide information - #12 by robert.jochim if not others. Unfortunately it’s been enough years that I don’t remember which other threads I might have used as references.

(from the logfile)
WARNING: running xinput against an Xwayland server. See the xinput man page for details.
WARNING: running xinput against an Xwayland server. See the xinput man page for details.
WARNING: running xinput against an Xwayland server. See the xinput man page for details.
[INFO   ] [Base        ] Start application main loop
[WARNING] [request_api ] 2026-09-01 18:32:39 - last_6h call failed
[INFO   ] [Base        ] Leaving application in progress...
Traceback (most recent call last):
  File "/home/pi/wfpiconsole/main.py", line 621, in <module>
    wfpiconsole_app.run()
    ~~~~~~~~~~~~~~~~~~~^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/app.py", line 956, in run
    runTouchApp()
    ~~~~~~~~~~~^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/base.py", line 574, in runTouchApp
    EventLoop.mainloop()
    ~~~~~~~~~~~~~~~~~~^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/base.py", line 339, in mainloop
    self.idle()
    ~~~~~~~~~^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/base.py", line 383, in idle
    self.dispatch_input()
    ~~~~~~~~~~~~~~~~~~~^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/base.py", line 334, in dispatch_input
    post_dispatch_input(*pop(0))
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/base.py", line 302, in post_dispatch_input
    wid.dispatch('on_touch_up', me)
    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
  File "kivy/_event.pyx", line 731, in kivy._event.EventDispatcher.dispatch
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/uix/behaviors/button.py", line 179, in on_touch_up
    self.dispatch('on_release')
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "kivy/_event.pyx", line 727, in kivy._event.EventDispatcher.dispatch
  File "kivy/_event.pyx", line 1307, in kivy._event.EventObservers.dispatch
  File "kivy/_event.pyx", line 1191, in kivy._event.EventObservers._dispatch
  File "/home/pi/wfpiconsole/venv/lib/python3.13/site-packages/kivy/lang/builder.py", line 60, in custom_callback
    exec(__kvlang__.co_value, idmap)
    ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/wfpiconsole/user/customPanels.kv", line 23, in <module>
    on_release: app.CurrentConditions.switchPanel(self)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/wfpiconsole/main.py", line 605, in switchPanel
    self.ids[button_data[1]].add_widget(eval(new_panel + 'Panel')(mode))
                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
TypeError: ExamplePanel.__init__() takes 1 positional argument but 2 were given
[INFO   ] [UDP         ] 2026-09-01 18:32:51 - Closing socket
[INFO   ] [UDP         ] 2026-09-01 18:32:51 - Socket closed

And from the .ini file…

[PrimaryPanels]
PanelOne = Example
PanelTwo = Temperature
PanelThree = WindSpeed
PanelFour = SunriseSunset
PanelFive = Rainfall
PanelSix = Barometer

[SecondaryPanels]
PanelOne = Sager
PanelTwo = Forecast
PanelThree =
PanelFour = MoonPhase
PanelFive =
PanelSix = Lightning