Question

我的计算机上具有GIF文件路径的变量，在main（）循环中，有一个供GIF在循环中运行的类和一个Worker类。还要从cmd提示符下执行它。

该程序的执行应该只打印8倍所选水果的类型，并在Tkinter中显示该水果的GIF，当您输入“确定”时，GIF应该退出，程序等待下一个输入（另一种水果）进行操作。同样的事情。

一切正常，直到第二次尝试。也就是说，它会打印出8倍水果很好但没有GIF显示的水果。如果输入'ok'，则会报告

“线程Thread中的异常”

和

“ RuntimeError：主线程不在主循环中”错误。

我从http://code.activestate.com/recipes/580708-tkinter-animated-gif/下载了AnimatedGIF类代码，但是我发现只有一半能使GIF循环播放，所以我将其切碎了。

猜猜我需要队列模块或线程after（）方法，但我不知道要实现它们。

#! python3

fruit = [ 'apple', 'peach', 'orange', 'grape', 'lemon', 'banana', 
'strawberry', 'coconut' ]

app = r"C:\Users\User\Desktop\folder za python fajlove\Apple.gif"
pea = r"C:\Users\User\Desktop\folder za python fajlove\Peach.gif"
ora = r"C:\Users\User\Desktop\folder za python fajlove\Orange.gif"
gra = r"C:\Users\User\Desktop\folder za python fajlove\Grape.gif"
lem = r"C:\Users\User\Desktop\folder za python fajlove\Lemon.gif"
ban = r"C:\Users\User\Desktop\folder za python fajlove\Banana.gif"
stw = r"C:\Users\User\Desktop\folder za python fajlove\Strawberry.gif"
coc = r"C:\Users\User\Desktop\folder za python fajlove\Coconut.gif"

GIF = [ app, pea, ora, gra, lem, ban, stw, coc ]

def main():
        print('Enter the type of fruit you like to see')
        inpuT = input()

        while inpuT not in fruit:
                print('Enter the type of fruit you like to see')
                inpuT = input()

        a = fruit.index(inpuT)

        for x in fruit:
                print( fruit[a] + ' is nice!!!') 


        import tkinter as tk
        from tkinter import PhotoImage                                              
        from tkinter import Label
        import threading
        from PIL import Image, ImageTk

#-----------------------------------------------------------
        class AnimatedGIF(Label, object):
            def __init__(self, master, path, forever=True):
                self._master = master
                self._loc = 0
                self._forever = forever

                self._is_running = False

                im = Image.open(path)
                self._frames = []
                i = 0
                try:
                    while True:
                        photoframe = 
ImageTk.PhotoImage(im.copy().convert('RGBA'))
                        self._frames.append(photoframe)

                        i += 1
                        im.seek(i)
                except EOFError: pass

                self._last_index = len(self._frames) - 1

                try:
                    self._delay = im.info['duration']
                except:
                    self._delay = 100

                super(AnimatedGIF, self).__init__(master, 
image=self._frames[0])

            def start_animation(self, frame=None):
                if self._is_running: return

                if frame is not None:
                    self._loc = 0
                    self.configure(image=self._frames[frame])

                self._master.after(self._delay, self._animate_GIF)

            def _animate_GIF(self):
                self._loc += 1
                self.configure(image=self._frames[self._loc])

                if self._loc == self._last_index:
                    if self._forever:
                        self._loc = 0
                        self._callback_id = 
self._master.after(self._delay, self._animate_GIF)

                else:
                    self._callback_id = self._master.after(100, 
self._animate_GIF)   

            def pack(self, start_animation=True, **kwargs):
                if start_animation:
                    self.start_animation()

                super(AnimatedGIF, self).pack(**kwargs)


        class Worker(threading.Thread):                    
                def run(self):
                        global root                        
                        root = tk.Tk()                     
                        win = AnimatedGIF(root, GIF[a])    
                        win.pack()                         
                        root.mainloop()

        w = Worker()                                       
        w.start()
        novo = input()
        if novo == 'ok':
                root.quit()

while True:
        main()

Tkinter中的“主线程不在主循环中”

0 个答案: