[英]Python: Getting an undefine variable error when trying to call a function?
[英]Getting error when trying to interpolate variable
我似乎無法弄清楚'超級'對象沒有屬性' getattr '意味着什么。 我不知道為什么我會收到這個錯誤。
這是一個簡單的猜謎游戲,我使用Kivy作為GUI
import math
import kivy
kivy.require('1.11.0')
from kivy.app import App
from kivy.uix.gridlayout import GridLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
class Layout(GridLayout):
def __init__(self, **kwargs):
super(Layout, self).__init__(**kwargs)
self.cols = 3
self.guesses = 10
self.hasWon = False
self.pressedStart = False
self.ids.start.text = 'Start'
self.ids.gameText.text = 'Press Start when have chosen your number and are ready!'
self.ids.instructions.text = 'Choose any number between 0 and 20000 and I will guess it in 10 tries!'
self.max_guess = 20000
self.min_guess = 0
self.guess = math.ceil((self.max_guess - self.min_guess) / 2)
self.ids.guessText.text = f'Guess left: {self.guesses}'
def higher(self):
if self.pressedStart == True and self.hasWon == False:
self.guesses -= 1
self.min_guess += self.guess
self.ids.startText.text = f'Is your number {self.guess}?'
else:
pass
File "guessing_game.py", line 41, in higher
self.ids.startText.text = f'Is your number {self.guess}?'
File "kivy/properties.pyx", line 863, in kivy.properties.ObservableDict.__getattr__
AttributeError: 'super' object has no attribute '__getattr__'
self.ids.startText.text = f'Is your number {self.guess}?'
File "kivy/properties.pyx", line 863, in kivy.properties.ObservableDict.__getattr__
AttributeError: 'super' object has no attribute '__getattr__'
這意味着屬性或變量ids.startText
在self.ids
字典類型屬性或對象Layout
中不存在。
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