tkinter code examples

from tkinter import Tk, Label, Button class MyFirstGUI: def __init__(self, master): self.master = master master.title("A simple GUI") self.label = Label(master, text="This is our first GUI!") self.label.pack() self.greet_button = Button(master, text="Greet", command=self.greet) self.greet_button.pack() self.close_button = Button(master, text="Close", command=master.quit) self.close_button.pack() def greet(self): print("Greetings!") root = Tk() my_gui = MyFirstGUI(root) root.mainloop()

python example with tkinter

from tkinter import *
from tkinter import ttk

def calculate(*args):
    try:
        value = float(feet.get())
        meters.set(int(0.3048 * value * 10000.0 + 0.5)/10000.0)
    except ValueError:
        pass

root = Tk()
root.title("Feet to Meters")

mainframe = ttk.Frame(root, padding="3 3 12 12")
mainframe.grid(column=0, row=0, sticky=(N, W, E, S))
root.columnconfigure(0, weight=1)
root.rowconfigure(0, weight=1)

feet = StringVar()
feet_entry = ttk.Entry(mainframe, width=7, textvariable=feet)
feet_entry.grid(column=2, row=1, sticky=(W, E))

meters = StringVar()
ttk.Label(mainframe, textvariable=meters).grid(column=2, row=2, sticky=(W, E))

ttk.Button(mainframe, text="Calculate", command=calculate).grid(column=3, row=3, sticky=W)

ttk.Label(mainframe, text="feet").grid(column=3, row=1, sticky=W)
ttk.Label(mainframe, text="is equivalent to").grid(column=1, row=2, sticky=E)
ttk.Label(mainframe, text="meters").grid(column=3, row=2, sticky=W)

for child in mainframe.winfo_children(): 
    child.grid_configure(padx=5, pady=5)

feet_entry.focus()
root.bind("<Return>", calculate)

root.mainloop()

Posted by: Guest on May-26-2021

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