Today, being the last day of lectures at school, my instructor ran briefly
through Tkninter and GUIs. I'd been looking forward to this particular lesson
all semester, but when I got home and copied a sample program from my textbook
verbatim, IDLE does nothing. No error, no nothing. Any ideas? Here is the code
from my program. I'm not sure if this is appropriate, but suggestions are
helpful.
import tkinter
import tkinter.messagebox
class MyGui:
def _init_(self):
self.main_window = tkinter.Tk()
self.top_frame = tkinter.Frame(self.main_window)
self.bottom_frame = tkinter.Frame(self.main_window)
self.prompt_label = tkinter.Label(self.top_frame, text = 'Enter a
distance in Kilometers: ')
self.kilo_entry = tkinter.Entry(self.top_frame, width = 10)
self.prompt_label.pack(side = 'left')
self.kilo_entry.pack(side = 'left')
self.calc_button = tkinter.Button(self.bottom_frame, text = 'Convert',
command = self.convert)
self.quit_button = tkinter.Button(self.bottom_frame, text = 'Quit',
command = self.main_window.destroy)
self.calc_button.pack(side = 'left')
self.quit_button.pack(side = 'left')
self.top_frame.pack()
self.bottom_frame.pack()
tkinter.mainloop()
def convert(self):
kilo = float(self.kilo_entry.get())
miles = kilo * 0.6214
tkinter.messagebox.showinfo('Result', str(kilo) + ' kilometers is equal
to ' + str(miles) + 'miles.')
poop = MyGui()
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