PythonのTkinterウィンドウを "リフレッシュ"するには？

Question

私はボタンを使ってPythonでTkinterウィンドウを再読み込みしようとしていますが、問題が見つかっていません。あなたは、import randomを使用し、リストからランダムに単語を生成します。ボタンをクリックすると、ラベルを異なる単語に設定したいと思います。

import random 
from Tkinter import *   #don't import like this except for Tkinter 
root = Tk() #create main window 
root.title('Atarashi Sozo') 
# Make and place a canvas widget for events and drawing 
canvas = Canvas(root, height=600, width=600, relief=RAISED, bg='white') 
canvas.grid() #Puts the canvas in the main Tk window 

#Create lists 
creature = ['is an Animal', 'is a Human', 'is an Artificial Intelligence', 
     'is an Alien', 'is a Mage','is a Reptillian','is a Shapeshifter', 
     'is Undead', 'is a Scorpion Hedgehog', 'is an Angel', 'is a Demon'] 
element = ['controls lightning', 'controls fire', 'controls nature', 'controls water', 'controls mater', 
     'controls time', 'controls gravity', 'controls life', 'controls death', 'controls wind', 
     'can bend any metal','controls the sun', 'controls the moon', 'controls love'] 
features = ['has wings', 'has markings', 'has large fangs', 'has claws', 'has a tail', 'has a weapon', 
     'has cybernetic parts', 'has wolf ears', 'has broken teeth', 'has a horn', 'has big ears', 
     'has eyes with two colors', 'has a mp3'] 
wildcard = ['is cursed', 'is bewitched', 'has no soul', 'killed someone', 'just learned magic', 
     'has no wifi', 'has unlimited memory', 'is poor', 'won the lottery', 'set the world on fire', 'visited another dimension'] 
colors = ['is primarily blue', 'is primarily grey', 'is primarily red', 'is primarily green', 'is primarily orange', 
     'is secondarily blue', 'is secondarily grey', 'is secondarily red', 'is secondarily green', 'is seconarily orange', 
     'is primarily black', 'is primarily purple', 'is secondarily purple', 'has all the colors of the rainbow'] 
handicap = ['is blind', 'is deaf', 'lost limbs', 'fears everything', 'has broken bones','has a small head','has an illness', 
     'has amnesia', 'is allergic to almost everything', 'is deformed'] 
habitat = ['lives in cyberspace', 'lives in a desert', 'lives in the mountains', 'lives in a volcano', 'lives in grasslands', 
     'lives on the moon', 'lives in space', 'lives on a deserted island', 'lives in a virtual world', 'lives in the underworld'] 
personality = ['is clingy', 'is depressed', 'is energetic', 'is angry', 'is kind', 'is a jerk', 'is goofy', 'is immature', 'is happy', 
      'is insane'] 
profession = ['is a teacher', 'is an assassin', 'is a graphic designer', 'is a programmer', 'is a photographer', 'is a blacksmith', 
      'is a bounty hunter', 'is an inventor', 'is a mage', 'is a monster hunter'] 
hobby = ['likes to cook', 'likes to draw and paint', 'likes to build things', 'likes to play games', 'likes to shop', 
    'studies alchemy', 'likes to write', 'likes to make music', 'likes to design', 'likes sports'] 
#Sets categories to choose from 
categoryList = [hobby,profession,personality,habitat,handicap,colors,wildcard,features,element] 
#Removes category from list if it has been choosen to remove the possibility of duplicates 
catOne = random.choice(categoryList) 
if catOne in categoryList: categoryList.remove(catOne) 
catTwo = random.choice(categoryList) 
if catTwo in categoryList: categoryList.remove(catTwo) 
catThree = random.choice(categoryList) 
if catThree in categoryList: categoryList.remove(catThree) 
#Chooses item from category choosen 
itemOne = random.choice(catOne) 
itemTwo = random.choice(catTwo) 
itemThree = random.choice(catThree) 

#Creates the main visual almost the same as Atarashi Sozo in App Inventor 
Title_box = canvas.create_rectangle(500, 90, 100, 18, outline = 'purple',width = 10, fill = 'violet') 
Title_text = canvas.create_text(300, 50, text='Your Character', font=('Impact', -50)) 
Display_box1 = canvas.create_rectangle(600, 200, 8, 125, outline = 'blue', width = 10, fill = 'sky blue') 
Label1 = canvas.create_text(300, 160, text=random.choice(creature), font=('Impact', -30,), fill='red') 
Display_box2 = canvas.create_rectangle(600, 300, 8, 225, outline = 'red', width = 10, fill = 'pink') 
Label2 = canvas.create_text(300, 260, text=itemOne, font=('Impact', -30), fill='blue') 
Display_box3 = canvas.create_rectangle(600, 400, 8, 325, outline = 'goldenrod', width = 10, fill = 'gold') 
Label3 = canvas.create_text(300, 360, text=itemTwo, font=('Impact', -30), fill='chocolate4') 
Display_box4 = canvas.create_rectangle(600, 500, 8, 425, outline = 'saddle brown', width = 10, fill = 'chocolate') 
Label4 = canvas.create_text(300, 460, text=itemThree, font=('Impact', -30), fill='gold1') 

#Create Button 
class Outcomes(Frame): 

    def __init__(self,master): 
    Frame.__init__(self,master) 
    self.grid() 
    self.create_widgets() 
    def create_widgets(self): 
    self.button = Button(self, text = 'Generate Character') 
    self.button['command'] = self.print_text 
    self.button.grid() 
    def print_text(): 
    print 
app = Outcomes(root) 

# Enter event loop. This displays the GUI and starts listening for events. 
# The program ends when you close the window. 
root.mainloop() 

事前に協力いただきありがとうございます:)

Answer 1

Canvasは、アイテムのオプションを変更する方法itemconfig(item_id, option=new_value)を持っています。すなわち、

canvas.itemconfig(creature_text, text=random.choice(creature)) 

シンプル、実施例

try: 
    from Tkinter import * # Python 2 
except: 
    from tkinter import * # Python 3 

import random 

# --- functions --- 

def change_creature(): 
    # change text in item 
    canvas.itemconfig(creature_text, text=random.choice(creature)) 

# --- data --- 

creature = [ 
    'is an Animal', 'is a Human', 'is an Artificial Intelligence', 
    'is an Alien', 'is a Mage','is a Reptillian','is a Shapeshifter', 
    'is Undead', 'is a Scorpion Hedgehog', 'is an Angel', 'is a Demon' 
] 

# --- main --- 

root = Tk() 

canvas = Canvas(root, height=100, width=300) 
canvas.grid() 

# create empty item 
creature_text = canvas.create_text(10, 10, anchor='nw') 

# generate first text in item 
change_creature() 

# use button to call the same function  
button = Button(root, text='Generate Creature', command=change_creature) 
button.grid() 

root.mainloop() 

---

EDIT：より普遍的な - 機能

change_text(creature_text_1, creature) 

command=lambda:change_text(creature_text_1, creature)) 

のパラメータを使用するか

（独自機能なし）に直接それを使用

canvas.itemconfig(creature_text_1, text=random.choice(creature)) 

command=lambda:canvas.itemconfig(creature_text_1, text=random.choice(creature)) 

コード：

try: 
    from Tkinter import * # Python 2 
except:  
    from tkinter import * # Python 3 

import random 

# --- functions --- 

def change_text(item_id, all_text): 
    # change text in item 
    canvas.itemconfig(item_id, text=random.choice(all_text)) 

# --- data --- 

creature = [ 
    'is an Animal', 'is a Human', 'is an Artificial Intelligence', 
    'is an Alien', 'is a Mage','is a Reptillian','is a Shapeshifter', 
    'is Undead', 'is a Scorpion Hedgehog', 'is an Angel', 'is a Demon' 
] 

# --- main --- 

root = Tk() 

canvas = Canvas(root, height=100, width=300) 
canvas.grid() 

# create empty items 
creature_text_1 = canvas.create_text(10, 10, anchor='nw') 
creature_text_2 = canvas.create_text(10, 30, anchor='nw') 

# generate first text in item 
change_text(creature_text_1, creature) 
# or directly 
canvas.itemconfig(creature_text_2, text=random.choice(creature)) 

# use buttons to call the same function  
button = Button(root, text='Generate Creature 1', command=lambda:change_text(creature_text_1, creature)) 
button.grid() 

# or directly 
button = Button(root, text='Generate Creature 2', command=lambda:canvas.itemconfig(creature_text_2, text=random.choice(creature))) 
button.grid() 

root.mainloop()