Python屬性錯誤onkeypress

-1

我是Python新手。我在我的樹莓派上使用IDLE（使用python 2.7）。我一直無法編譯我的教程中最新的程序，一個貓捉老鼠遊戲。我得到以下錯誤：Python屬性錯誤onkeypress

Traceback (most recent call last) : 
    File "/home/pi/pyth-prog/Python_Cat_and-mouse.py", line 47, in <module> window.onkeypress(up, "Up") 
AttributeError: '__Screen' object has no attribute 'onkeypress'

我的代碼如下所示：

import turtle 
import time 


boxsize =200 
caught= False 
score= 0 


#function that are called keypresses 
def up(): 
    mouse.forward(10) 
    checkbound() 


def left(): 
    mouse.left(45) 


def right(): 
    mouse.right(45) 


def back(): 
    mouse.back(10) 


def quitTurtles(): 
    window.bye() 


#stop the ;ouse fro; leaving the square set by box sizes 

def checkbound(): 
    global boxsize 
    if mouse.xcor() > boxsize: 
     mouse.goto(boxsize, mouse.ycor()) 
    if mouse.xcor() < -boxsize: 
     mouse.goto(-boxsize, mouse.ycor()) 
    if mouse.ycor() > boxsize: 
     mouse.goto(mouse.xcor(), boxsize) 
    if mouse.ycor < -boxsize: 
     mouse.goto(mouse.xcor(), -boxsize) 


#Set up screen 
window=turtle.Screen() 
mouse=turtle.Turtle() 
cat=turtle.Turtle() 
mouse.penup() 
mouse.penup() 
mouse.goto(100, 100) 


#add key listeners 
window.onkeypress(up, "Up") 
window.onkeypress(left, "Left") 
window.onkeypress(right, "Right") 
window.onkeypress(back, "Down") 
window.onkeypress(quitTurtles, "Escape") 


difficulty=window.numinput("Difficulty", "Enter a difficulty from easy (1), for hard (5) ", minval=1, maxval=5) 


window.listen() 




#main loop 
#note how it changes with difficulty 




while not caught: 
    cat.setheading(cat.towards(mouse)) 
    cat.forward(8+difficulty) 


    score=score+1 
    if cat.distance(mouse) < 5: 
     caught=True 
    time.sleep(0.2-(0.01*difficulty)) 
window.textinput("GAME OVER", "Well done. You scored:"+ str(score*difficulty)) 
window.bye()

來源

2017-01-31 GDrepain

如果你想幫助你的代碼排除故障的問題被執行，則需要提供更多的信息。請參閱[如何創建最小，完整和可驗證示例]（http://stackoverflow.com/help/mcve）。 – glibdud

它看起來像'window'不是你想象的那樣，但是看不到你的代碼是不可能的。 – zondo

雖然現在已經包含了代碼是很好的，但這需要很多代碼（請參閱我給出的鏈接的「最小」部分）。如果你幫助別人幫助你，你將有更好的機會獲得幫助。 – glibdud

I use IDLE(Using python 2.7) on my raspberry pi

爲Python 2.7 turtle.py只定義onkey() - 在onkeypress()變異體在Python 3（加作爲onkey()的同義詞稱爲onkeyrelease()）

簡答題，請嘗試將onkeypress()更改爲onkey()。

一旦你過去這一關，numinput()和textinput()也是Python的3：

difficulty=window.numinput("Difficulty", "Enter a difficulty from easy (1), for hard (5) ", minval=1, maxval=5) 
... 
window.textinput("GAME OVER", "Well done. You scored:"+ str(score*difficulty))

所以他們可能需要有太多處理。

來源

2017-01-31 17:52:23 cdlane

基於來自Python 3.5的turtle。

它不neeed window.但後turtle.Screen()

import turtle 

# --- based on turtle in Python 3.5 --- 

import tkSimpleDialog 

def numinput(title, prompt, default=None, minval=None, maxval=None): 
    return tkSimpleDialog.askfloat(title, prompt, initialvalue=default, 
            minvalue=minval, maxvalue=maxval) 

def textinput(title, prompt): 
    return tkSimpleDialog.askstring(title, prompt) 

# --- main --- 

window = turtle.Screen() 

# doesn't need `window.` but has to be executed after `turtle.Screen()` 

difficulty = numinput("Difficulty", "Enter a difficulty from easy (1), for hard (5) ", minval=1, maxval=5) 

textinput("GAME OVER", "Well done. You scored:" + str(0))

來源

2017-02-01 03:33:12 furas

Python屬性錯誤onkeypress

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