【发布时间】：2020-05-31 17:36:37
【问题描述】：
我确定我在类/继承理解方面遗漏了一些东西。 当我点击提交按钮时，我收到此错误：
我尝试了许多变化，例如更改按钮中的命令、更改主控、定义 self.controller。
如何使提交按钮起作用？
import tkinter as tk
import os
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.geometry("650x500")
self.title("Gil Shwartz GUI Project")
menu = tk.Frame(self, height=250, width=10, bg="black")
menu.pack(side=tk.LEFT, fill="both", anchor="w")
container = tk.Frame(self, height=250, width=270, relief="flat")
container.pack(side=tk.TOP, fill="both", expand=True)
output = tk.LabelFrame(self, text="Output", height=150, padx=5, pady=5)
output.pack(side=tk.BOTTOM, fill="both", anchor="s")
menu.grid_columnconfigure(0, weight=0)
menu.grid_rowconfigure(0, weight=1)
container.grid_columnconfigure(1, weight=1)
self.frames = ["StartPage", "MainWelcome", "testPing", "PageOne", "PageTwo"]
self.frames[0] = Menu(parent=menu, controller=self)
self.frames[1] = MainWelcome(parent=container, controller=self)
self.frames[2] = testPing(parent=container, controller=self)
self.frames[3] = PageOne(parent=container, controller=self)
self.frames[4] = PageTwo(parent=container, controller=self)
self.frames[0].grid(row=0, column=0, sticky="nsew")
self.frames[1].grid(row=0, column=0, sticky="nsew")
self.frames[2].grid(row=0, column=0, sticky="nsew")
self.frames[3].grid(row=0, column=0, sticky="nsew")
self.frames[4].grid(row=0, column=0, sticky="nsew")
self.show_frame(1)
def show_frame(self, page_name):
frame = self.frames[page_name]
print(frame)
frame.tkraise()
class Menu(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.menu = controller
button1 = tk.Button(self, text="Ping Test",
command=lambda: controller.show_frame(2))
button2 = tk.Button(self, text="Page Two",
command=lambda: controller.show_frame(4))
button3 = tk.Button(self, text="Quit",
command=lambda: Menu.terminate(self))
button1.pack(fill="both", expand=True)
button2.pack(fill="both", expand=True)
button3.pack(fill="both", expand=True)
button1.grid_columnconfigure(0, weight=1)
button2.grid_columnconfigure(0, weight=0)
button3.grid_rowconfigure(0, weight=0)
def terminate(self):
exit()
class MainWelcome(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.menu = controller
label = tk.Label(self, text="Text 1", bg="yellow")
label.pack(fill="x", expand=True)
label = tk.Label(self, text="Text 2", bg="yellow")
label.pack(fill="x")
class testPing(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.urlLabel = controller
urlLabel = tk.Label(self, text="Enter URL : ", padx=5, pady=5)
urlLabel.pack(anchor="w")
urlInputBox = tk.Entry(self)
urlInputBox.pack()
urlInputBox.grid_columnconfigure(0, weight=0)
clearLabel = tk.Label(self, text="Clear File?", padx=5, pady=5)
clearLabel.pack(anchor="w")
clearFile = tk.BooleanVar()
clearFile.set(False)
clearFileRadioYes = tk.Radiobutton(self, text="yes", value=True, var=clearFile,
command=lambda: testPing.callback(clearFile.get()))
clearFileRadioYes.pack(anchor="w")
clearFileRadioNo = tk.Radiobutton(self, text="no", value=False, var=clearFile,
command=lambda: testPing.callback((clearFile.get())))
clearFileRadioNo.pack(anchor="w")
urlSubmitButton = tk.Button(self, text="Submit",
command=lambda: testPing.pingURL(urlInputBox.get(),
testPing(clearFile.get())))
urlSubmitButton.pack(side=tk.RIGHT, anchor="e")
def callback(clearFile):
print(clearFile) # Debugging Mode - check Radio box Var.
def pingURL(self, host, clearFile):
outputFrameLabel = tk.LabelFrame(self, text="Output", height=35, width=150,
padx=5, pady=5, relief="solid")
outputFrameLabel.place(x=0, y=150)
file = fr'c:/users/{os.getlogin()}/Desktop/ping.txt'
label = tk.Label(outputLabel, text=f'Pinging {host} ...')
label.grid(row=0, column=0)
label.update()
if clearFile == True:
with open(file, 'w+') as output:
output.truncate(0)
sub.call(['ping', f'{host}'], stdout=output)
else:
with open(file, 'a') as output:
sub.call(['ping', f'{host}'], stdout=output)
output.close()
label.configure(text=f'Ping to {host} complete!')
# testPing.changeLabel(host)
# def changeLabel(self, host):
# myLabel = tk.Label.config(text=f"Ping to {host} Complete!")
# myLabel.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 1", bg="red")
label.pack(side="top", fill="x", pady=10)
button = tk.Button(self, text="Go to page 2",
command=lambda: controller.show_frame(2))
button.pack()
class PageTwo(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self, text="This is page 2", bg="blue")
label.pack(side="top", fill="x", pady=10)
# button = tk.Button(self, text="Go to the start page",
# command=lambda: controller.show_frame(0))
# button.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
【问题讨论】：
-
错误是什么？
-
哎呀，哈哈，刚刚添加了它！接得好！ :)
-
当您编写代码行
testPing(clearFile.get())时，您缺少所需的变量controller，因为您只传递了变量parent
标签： python class inheritance tkinter