Python/Tkinter button color changing

[DeaD_EyE]

It is a bit tricky. You can misuse command and give as first argument the button itself as reference to the function. Inside the function you can do something like a toggle function with an if-condition.

Here an example:

from functools import partial
from tkinter import Tk
from tkinter import Button


def toggle(button, to_send):
"""
This function gets the reference to the button itself and the command which
should be send to serial port...
"""
if button['bg'] == 'green':
button['bg'] = 'red'
else:
button['bg'] = 'green'
button['activebackground'] = button['bg']
print('Button pressed')
print('Sending:', to_send)
# your code to send it to the serial port


# Your way
root = Tk()
b1 = Button(root, text='YourButton1', bg='red', activebackground='red')
b1['command'] = partial(toggle, b1, 'This is what you can send to serial port...')
b1.pack()


# doing it programatically
labels = ['Button {}'.format(n) for n in range(1,17)] # Text 1 - 16
text_commands = ['{:x}'.format(n) for n in range(0,16)] # Command 0 - 15 in HEX
buttons = [Button(root, text=label, bg='red', activebackground='red') for label in labels] # prepare the Buttons
# doing the rest and pack finally
for button, text_command in zip(buttons, text_commands):
button['command'] = partial(toggle, button, text_command)
button.pack()

Button(root, text='Quit', command=root.destroy).pack()

root.mainloop()

Remind, it's Python 3.
Change the import to Tkinter. I think it should run with Python2.7