Reference Cheat Sheet for Tkinder module GUI in Python 2.7

Tkinder_reference.py

from Tkinter import *

def clickme_clicked():
    response = "Welcome to " + txt.get()
    lbl.configure(text = response)
    print(rad_selected.get())
    messagebox.showinfo('Script Status','Completed!')

# Start the window
window = Tk()

# Set parameters for the window
window.title("Hello World")
window.geometry("400x500")

# Label Example
lbl = Label(window, text="Hello World!")
lbl.grid(column=0, row=0)

# Button Example
btn = Button(window, text="Click Me", command=clickme_clicked)
btn.grid(column=0, row=1)

# Input Example
txt = Entry(window, width=10) # , state='disabled'
txt.grid(column=1, row=0)
txt.focus()

# Checkbox Example
chk_state = BooleanVar()
chk_state.set(False)
chk = Checkbutton(window, text='Choose', var=chk_state)
chk.grid(column=2, row=0)

# Radio Buttons Example
rad_selected = IntVar()
rad1 = Radiobutton(window, text='First', value=1, variable=rad_selected)
rad2 = Radiobutton(window, text='Second', value=2, variable=rad_selected)
rad3 = Radiobutton(window, text='Third', value=3, variable=rad_selected)
rad1.grid(column=0, row=2)
rad2.grid(column=1, row=2)
rad3.grid(column=2, row=2)

# Show the window
# But first, set its attributes to show it on top
# to start
window.call('wm', 'attributes', '.', '-topmost', '1')
window.mainloop()