Name: 用Python創建一個鍵盤記錄器 - 教程 (Create a Keylogger with Python - Tutorial)
Uploaded: 2021-01-14T10:21:25.000Z
Duration: 11 min 38 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

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to 不定詞

With in this video, I'm gonna be showing you how to log user key presses and save those key presses in a meaningful way in a text file.

現在進行式

Now, the module that we're gonna be using for this is pie input.

It is 1/3 party module not included with the default installation of python, Which means our first step in this video is gonna be installing pie input.

So what we need to do is obviously we have to go to our command prompt because risking use pip to do this pretty straightforward.

Bring up your command, prompt simply type pip in Seoul and then pi n put.

Okay, So just forget the either wait for that to run.

And once I go so you should have pie and put insult.

For some reason, your pip is not working reinstalled python.

And when you reinstall python, make sure you add check the box that says add python to path and install pip Okay, and that should fix your issue.

If you have any other problems, they've calmed down below.

What we need to do is we're gonna set up a We need to actually bring these imports.

Since we need to import pie input and then from pi import keyboard, we're gonna import key, and we're gonna input listener now, listeners, what's gonna listen for our key events?

So we need to do is we're just going to say, with on listener, we're gonna have some brackets like this and we're gonna say on underscore press equals on underscored press.

Just fall along with this for one second and then on underscore release is gonna equal on underscore release like that.

Now, these on press and on release are what we're gonna code in just a second and he's gonna be the functions that are called when a key is pressed and when a key is released.

Feel for you to change these names if you'd like to.

OK, we're just going to say as now listener, except this is gonna be lower case and then in this loop, or simply do listening dot Join.

Okay, and what this is gonna do is just constantly keep running this loop until we break out of it and you'll see that a second.

So now we need to create two functions on pressing on release.

So we're gonna do is going to define on press.

This is gonna take a key, and we'll just pass in here and then we go to define on release same thing in here, a key, and we will pass now.

Actually, what we're gonna do on on press is we're just gonna print out the key just so we can see this working first of all, and then we'll move into some other stuff.

So it's gonna print, and then this is a fancy way to print this key out.

You don't do it this way if you don't want to.

But we're just gonna dot form at this with a key so that it throws it in there like that.

Okay, so this is just simply gonna put key in our strength.

Okay, so on release, we're gonna add one bit of functionality just to make sure that we're able to break out of this loop and you will see that in one seconds.

So we're going to say if key goes, eagle is key dot and then yes, C which stands for escape going to return false.

And all this is gonna do is break out of this loop if we hit the escape key.

So now let's test our program and see if everything is working.

Okay, so we can see that we get the window up here, and if I start typing some stuff you can see it says J s J S s.

And then it just tells me exactly what keys I hit after hit like the shift key or the caps lock key.

Okay, so now that we have that, that's great.

But we want to actually do something meaningful with this right now.

It just giving us like a bunch of letters and these keys like this.

We want to save this into probably a tax filers, something that we're gonna be able to look at because most likely, if you're creating a key logger, you probably want to do something with the keys that are being pressed.

So what I'm gonna do is I'm going to implement a few variables here and explain what they do in just a second.

So I'm going to start by saying account equal zero keys equals a blank list and then inside of on press, say, global keys and count.

And I'm also gonna create another function here, and this one is gonna be called right underscore file on What this is gonna do is exactly what it says.

So what we're gonna say advancing with open and then a text file name Whatever you want in this case, minds of long dirty X t, and then we're gonna put a mode here.

Okay, Now, if the first time you're running this, you don't have a text fellow created and you're too lazy to make one cold for whatever you wanna call it, just put this as W.

And if that file does not exist, it's simply going to create one.

So the first time you run it w works fine.

But after that, you have to use a okay, We're going to do with open longer t X t in upend mode.

that's what that stands for as f and sorry.

We're gonna do anything here because we're gonna look through all the keys and we're just gonna write them into the file.

So for key in keys, and then we'll simply f writes key like that.

And this is going to write all of our keys into the file for us now you might ask.

Well, okay, what's the point of this keys list and this count Variable.

Well, the thing is, if our users, somehow able, is able to, ah, break the program or like quit out of the program, we want to make sure that we're not just writing this at the end because, say, for example, the users on the computer for, like, an hour and they're typing stuff and restoring all their keys in this key list.

And then all of a sudden they quit the program somehow without hitting the escapee.

None of that is going to go into the text flow.

So what this count variables gonna allow us to do when I implemented in just second is every so many keys, we're going to update the text file.

So this way we're not constantly rewriting it every second.

But after the user hits a certain amount of keys, then we're going to load that or write all that data into the text.

So I guess I should probably add to our keys list if we're gonna be using that.

So whenever the user hits a key, we're just gonna do keys thought depend that key.

So count Plus equals countless eagles, one like that.

And we can continue to prentiss if you want, Although it's not gonna be necessary because everything is gonna go in our log dot t X T foe.

I'm just gonna throw if statement and I say if couch is greater than or equal to and you can pick what number you want to do here, I'm just gonna pick 10.

This means every 10 keys is how often we're gonna update the file.

Obviously, if you think this could be running for a long time Yeah, I'm gonna make this longer or larger.

You could not have the count variable if you want.

Okay, Now I say we're gonna reset account's zero.

We're going to write to our file passing it Archies list, which is up here, and it's gonna have stored all these keys, and they're just gonna reset Keys and keys get equal to blink like this.

Okay, so that is, I think, at least should be working.

The whole time I was typing that was recording my keys.

So pretty much in here just getting mad at us because we don't have strings.

So just throw a string in there, and then it should work.

And now we're gonna go in long dot t x t.