Python GUI Programming

Python GUI Programming

Use the tkinter module to create a simple GUI program.
Tkinter's widgets include buttons, canvas, checkbutton, entry, frame, label, ListBox, menu, menubutton, message, radiobutton, scales, scrollbar, text, and toplevel.

Example:
# This program displays an empty window.
Import tkinter
Def main ():
Main_window = tkinter. TK ()
Tkinter. mainloop ()
Main ()

Example 2:
Import tkinter
Class mygui:
Def _ init _ (Self ):
# Create the Main Window widget.
Self. main_window = tkinter. TK ()

# Enter the tkinter main loop.
Tkinter. mainloop ()
# Create an instance of the mygui class.
My_gui = mygui ()

Example 3:
# The program displays a label with text.
Import tkinter
Class mygui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
# Create a label widget containing the text 'Hello world'
Self. Label = tkinter. Label (self. main_window, text = 'Hello world! ')
# Call the label widget's pack method.
Self. Label. Pack ()
# Enter the tkinter main loop.
Tkinter. mainloop ()
# Create an instance of the mygui class.
My_gui = mygui ()

Example 4:
Import tkinter
Class mygui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
Self. label1 = tkinter. Label (self. main_window, text = 'Hello world! ')
Self. label2 = tkinter. Label (self. main_window, text = 'This is my gui program .')
Self. label1.pack ()
Self. label2.pack ()
Tkinter. mainloop ()
Mygui = mygui ()

Example 5:
Import tkinter
Class mygui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
Self. label1 = tkinter. Label (self. main_window, text = 'Hello world! ')
Self. label2 = tkinter. Label (self. main_window, text = 'This is my gui program .')
Self. label1.pack (side = 'left ')
Self. label2.pack (side = 'left ')
Tkinter. mainloop ()
Mygui = mygui ()

Example 6:
Import tkinter
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. label1 = tkinter. Label (self. top_frame, text = 'winken ')
Self. label2 = tkinter. Label (self. top_frame, text = 'blinken ')
Self. label3 = tkinter. Label (self. top_frame, text = 'nod ')

Self. label1.pack (side = 'top ')
Self. label2.pack (side = 'top ')
Self. label3.pack (side = 'top ')

Self. label4 = tkinter. Label (self. bottom_frame, text = 'winken ')
Self. label5 = tkinter. Label (self. bottom_frame, text = 'blinken ')
Self. label6 = tkinter. Label (self. bottom_frame, text = 'nod ')

Self. label4.pack (side = 'left ')
Self. label5.pack (side = 'left ')
Self. label6.pack (side = 'left ')

Self. top_frame.pack ()
Self. bottom_frame.pack ()

Tkinter. mainloop ()
Mygui = mygui ()

Button widget and information dialog box
Use the showinfo function of the tkmessagebox module to display the information dialog box.
Example:
# The program demonstrates a Button widget.
# When the user clicks the button, an info dialog box is displayed.
Import tkinter
Import tkmessagebox
Class mygui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
Self. my_button = tkinter. Button (self. main_window, text = 'click me! ', Command = self. do_something)
Self. my_button.pack ()
Tkinter. mainloop ()
Def do_something (Self ):
Tkmessagebox. showinfo ('response', 'Thanks for clicking the button .')
Mygui = mygui ()

Example 2:
Import tkinter
Import tkmessagebox
Class mygui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
Self. my_button = tkinter. Button (self. main_window, text = 'click me! ', Command = self. do_something)
Self. quit_button = tkinter. Button (self. main_window, text = 'quit', command = self. main_window.quit)
Self. my_button.pack ()
Self. quit_button.pack ()
Tkinter. mainloop ()
Def do_something (Self ):
Tkmessagebox. showinfo ('response', 'Thanks for clicking the button .')
Mygui = mygui ()

Use the entry widget to obtain the input.
The entry widget is a rectangular area that you can enter. You can use the get method of the entry widget to retrieve the input data.
Example:
Import tkinter
Import tkmessagebox
Class kilogui:
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. Label = tkinter. Label (self. top_frame, text = 'enter a distance in kilometers :')
Self. Entry = tkinter. Entry (self. top_frame, width = 10)
Self. button1 = tkinter. Button (self. bottom_frame, text = 'convert', command = self. Convert)
Self. button2 = tkinter. Button (self. bottom_frame, text = 'quit', command = self. main_window.quit)

Self. Label. Pack (side = 'left ')
Self. Entry. Pack (side = 'left ')
Self. button1.pack (side = 'left ')
Self. button2.pack (side = 'left ')
Self. top_frame.pack ()
Self. bottom_frame.pack ()

Tkinter. mainloop ()
Def convert (Self ):
Kilo = float (self. Entry. Get ())
Miles = kilo * 0.6214
Tkmessagebox. showinfo ('result', STR (kilo) + 'kilometers is equal to '+ STR (Miles) + 'miles .')

Mygui = kilogui ()

Example 2:
Import tkinter
Import tkmessagebox
Class kilogui:
Def _ init _ (Self ):
Self. main_window = tkinter. TK ()
Self. top_frame = tkinter. Frame (self. main_window)
Self. mid_frame = tkinter. Frame (self. main_window)
Self. bottom_frame = tkinter. Frame (self. main_window)

Self. label1 = tkinter. Label (self. top_frame, text = 'enter a distance in kilometers :')
Self. Entry = tkinter. Entry (self. top_frame, width = 10)

Self. button1 = tkinter. Button (self. bottom_frame, text = 'convert', command = self. Convert)
Self. button2 = tkinter. Button (self. bottom_frame, text = 'quit', command = self. main_window.quit)

Self. label2 = tkinter. Label (self. mid_frame, text = 'converted to Miles :')
Self. value = tkinter. stringvar ()
Self. label3 = tkinter. Label (self. mid_frame, textvariable = self. value)

Self. label1.pack (side = 'left ')
Self. Entry. Pack (side = 'left ')

Self. button1.pack (side = 'left ')
Self. button2.pack (side = 'left ')

Self. label2.pack (side = 'left ')
Self. label3.pack (side = 'left ')

Self. top_frame.pack ()
Self. mid_frame.pack ()
Self. bottom_frame.pack ()

Tkinter. mainloop ()
Def convert (Self ):
Kilo = float (self. Entry. Get ())
Miles = kilo * 0.6214
Self. value. Set (Miles)

Mygui = kilogui ()

Radio and check buttons
Example:
Import tkinter
Import tkmessagebox
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. radio_var = tkinter. intvar ()
Self. radio_var.set (1)
Self. rb= tkinter. radiobutton (self. top_frame, text = 'option 1', variable = self. radio_var, value = 1)
Self. Rb2 = tkinter. radiobutton (self. top_frame, text = 'option 2', variable = self. radio_var, value = 2)
Self. Rb3 = tkinter. radiobutton (self. top_frame, text = 'option 3', variable = self. radio_var, value = 3)

Self. rb1.pack ()
Self. rb2.pack ()
Self. rb3.pack ()

Self. OK _button = tkinter. Button (self. bottom_frame, text = 'OK', command = self. show_choice)
Self. quit_button = tkinter. Button (self. bottom_frame, text = 'quit', command = self. main_window.quit)

Self. OK _button.pack (side = 'left ')
Self. quit_button.pack (side = 'left ')

Self. top_frame.pack ()
Self. bottom_frame.pack ()

Tkinter. mainloop ()

Def show_choice (Self ):
Tkmessagebox. showinfo ('selection ', 'you selected optioin' + STR (self. radio_var.get ()))
Mygui = mygui ()