Question

我正在编写一个连接到reddits API的程序。我为用户设置了三个输入小部件，以输入特定的单词，特定的subreddit和特定的要解析的帖子数。

下面是代码。我所有这些都坐在一个名为KDGUI的类中。运行脚本时，我只会得到空白的Tkinter GUI屏幕。

有什么想法吗？我尝试在类中来回切换GUI代码。我还没有足够的经验来真正解决这个问题。

谢谢！

这是关于Sublime Text的。我没有发布API信息，但可以想象它在根变量之上。

root = tk.Tk()

Ht = 300
Wd = 450


class KDGUI():

    def enter_info():
        word = e1.get()
        subred = e2.get()
        amnt = e3.get()

        def run_bot():
            sub = r.subreddit(subred)
            time.sleep(1)
            print("---Grabbing subreddit---\n")
            time.sleep(1)
            subs = sub.top('day', limit=amnt)
            print("---Grabbing posts in sub---\n")
            time.sleep(1)
            print("Looking for Articles..\n")

            word_not_found = True

            for posts in subs:
                article_url = posts.url
                post_title = posts.title
                word_to_find = word

                word_not_found = False

                if word_to_find in post_title:
                    time.sleep(3)
                    print(post_title)
                    print('')



                else: 
                    word_not_found = word_not_found and True

                if word_not_found:
                    print("Can't find articles in the subreddit!")




        root.title("Finding Kawhi Articles")

        canvas = tk.Canvas(root, height=Ht, width=Wd)
        canvas.pack()

        background_image = tk.PhotoImage(file='Kawhi-Leonard.gif')

        background_label = tk.Label(root, image=background_image)
        background_label.place(x=0, y=0, relwidth=1, relheight=1)

        e1 = tk.Entry(root) # Word to enter
        e1.place(relx=.275, rely=.45)

        e2 = tk.Entry(root) # subreddit to enter
        e2.place(relx=.275, rely=.55)

        e3 = tk.Entry(root) # sort by amount of posts
        e3.place(relx=.275, rely=.65)

        activate_button = tk.Button(root, text="Click here to generate 
article!", command=run_bot)
        activate_button.place(relx=.20, rely=.85, relwidth=0.55, 
relheight=0.10)

        close_button = tk.Button(root, text="Click to close program", 
command = root.quit)
        close_button.place()

        root.resizable(False, False)





root.mainloop()
KDGUI()

Answer 1

由于您选择的是OOP方法，因此您需要首先创建您的类的实例，然后调用该方法以创建窗口小部件，因为它没有__init__，如下所示：

root = tk.Tk()

Ht = 300
Wd = 450


class KDGUI():

    def enter_info(self):
        ...

kd = KDGUI()
kd.enter_info()
root.mainloop()

但是我建议您通过继承Tk或Frame来更好地组织GUI，如下所示：

import tkinter as tk

root = tk.Tk()

class MainFrame(tk.Frame):
    def __init__(self, master=None, **kwargs):
        tk.Frame.__init__(self, master, **kwargs)
        self.entry1 = tk.Entry(self)
        self.entry2 = tk.Entry(self)
        self.button = tk.Button(self,text="Print entry values",command=self.get_entry_values)
        for i in (self.entry1, self.entry2, self.button):
            i.pack()

    def get_entry_values(self):
        print (self.entry1.get(), self.entry2.get())

main = MainFrame(root)
main.pack()

root.mainloop()

这将使您的GUI易于维护。

我运行代码时，PRAW连接的Tkinter GUI显得空白

1 个答案: