okay, THIS HAS BEEN DRIVING ME INSANE FOR LIKE THE PAST TWO DAYS. and its really annoying, so i am building an application using kivy, after getting used "easy as pie" tkinter I thought it was time to learn kivy (as it has mobile compatibility).
#I wanted to learn to reference different widgets# I searched YouTube and google for hours but to no avail I keep getting an error message
my code:
.py
# Imports
import webbrowser
from kivy.app import App
from kivy.lang import Builder
from kivy.uix.screenmanager import Screen
# ToDo: Monetizing the Application
def Monetize():
pass
def hide():
# hidden func thats not related to code for now
# configuring the Application
class HyperSearch(App):
main_text = "None"
# initialing the Application
def __init__(self, **kwargs):
super(HyperSearch, self).__init__(**kwargs)
self.a = Builder.load_file("kivy_file.kv")
def get_search(self):
engine_input = self.root.ids.raw_search
# building the Application
def build(self):
screen = Screen()
screen.add_widget(self.a)
# screen.add_widget("")
return screen
# Running The Application in main loop
if __name__ == "__main__":
HyperSearch().run()
# ToDo: Copyright Claim The Application and its code
.kv
<HyperSearch>:
GridLayout:
cols: 2
BoxLayout:
orientation: "vertical"
size_hint: None, 1
size: "120dp", 0
spacing: 5
Button:
text: "Toggle Shopping Search"
text_size: self.size
halign: 'center'
valign: 'middle'
Button:
text: "Toggle Music Search"
text_size: self.size
halign: 'center'
valign: 'middle'
Button:
text: "View History"
text_size: self.size
halign: 'center'
valign: 'middle'
BoxLayout:
orientation: "vertical"
valign: "top"
TextInput:
valign: "center"
orientation: "vertical"
font_size: 30
size_hint: 1, None
size: 0, "50dp"
pos_hint: {"top":1}
hint_text: "Search-Engine"
icon_right: "android"
helper_text: "Devices with under 1gb RAM may crash"
helper_text_mode: "on_focus"
multiline: False
id: raw_search
GridLayout:
cols: 2
size_hint: 1, None
size: 0, "100dp"
spacing: 10
Button:
text: "Search!!"
text_size: self.size
halign: 'center'
valign: 'middle'
size_hint: .5, 1
on_press: app.get_search()
Button:
text: "Small Search :("
text_size: self.size
halign: 'center'
valign: 'middle'
size_hint: .5, 1
GridLayout:
cols: 2
size_hint: 1, None
size: 0, "100dp"
Label:
text: "log:"
Label:
text: app.main_text
and
my error
[INFO ] [Base ] Start application main loop
[INFO ] [Base ] Leaving application in progress...
Traceback (most recent call last):
File "kivy\properties.pyx", line 861, in kivy.properties.ObservableDict.__getattr__
KeyError: 'raw_search'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\documents\kivy-trial\main.py", line 63, in <module>
HyperSearch().run()
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\app.py", line 950, in run
runTouchApp()
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\base.py", line 582, in runTouchApp
EventLoop.mainloop()
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\base.py", line 347, in mainloop
self.idle()
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\base.py", line 391, in idle
self.dispatch_input()
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\base.py", line 342, in dispatch_input
post_dispatch_input(*pop(0))
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\base.py", line 248, in post_dispatch_input
listener.dispatch('on_motion', etype, me)
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\core\window\__init__.py", line 1412, in on_motion
self.dispatch('on_touch_down', me)
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\core\window\__init__.py", line 1428, in on_touch_down
if w.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\relativelayout.py", line 297, in on_touch_down
ret = super(RelativeLayout, self).on_touch_down(touch)
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\widget.py", line 545, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\widget.py", line 545, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\widget.py", line 545, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\widget.py", line 545, in on_touch_down
if child.dispatch('on_touch_down', touch):
File "kivy\_event.pyx", line 709, in kivy._event.EventDispatcher.dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\uix\behaviors\button.py", line 151, in on_touch_down
self.dispatch('on_press')
File "kivy\_event.pyx", line 705, in kivy._event.EventDispatcher.dispatch
File "kivy\_event.pyx", line 1248, in kivy._event.EventObservers.dispatch
File "kivy\_event.pyx", line 1132, in kivy._event.EventObservers._dispatch
File "C:\Users\mayan\AppData\Local\Programs\Python\Python39\lib\site-packages\kivy\lang\builder.py", line 57, in custom_callback
exec(__kvlang__.co_value, idmap)
File "C:\Documents\kivy-trial\kivy_file.kv", line 58, in <module>
on_press: app.get_search()
File "C:\documents\kivy-trial\main.py", line 51, in get_search
engine_input = self.root.ids.raw_search
File "kivy\properties.pyx", line 864, in kivy.properties.ObservableDict.__getattr__
AttributeError: 'super' object has no attribute '__getattr__'
Process finished with exit code 1
P.S: THE ERROR ONLY SHOWS AFTER I HAVE PRESSED THE BUTTON
please help, thanks in advance, to who ever took the time to read my post
In order to use ids, you must define the id within your kv. So, to use the raw_search id you must define it in your kv like this:
TextInput:
id: raw_search
Then in your code:
def get_search(self):
engine_input = self.a.ids.raw_search.text
print(engine_input)
Note that the ids dictionary is built within the widget that is the root of the rule containing the id. In your case, the ids are in the GridLayout. So, to access that GridLayout widget, you must use self.a. Also, I assumed that the <HyperSearch>: line in your kv was a typo and removed it.