Traceback (most recent call last): File "C:\Users\木南\PycharmProjects\pythonProject1\venv\lib\site-packages\pandas\core\indexes\base.py", line 3652, in get_loc return self._engine.get_loc(casted_key) File "pandas\_libs\index.pyx", line 147, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\index.pyx", line 176, in pandas._libs.index.IndexEngine.get_loc File "pandas\_libs\hashtable_class_helper.pxi", line 7080, in pandas._libs.hashtable.PyObjectHashTable.get_item File "pandas\_libs\hashtable_class_helper.pxi", line 7088, in pandas._libs.hashtable.PyObjectHashTable.get_item KeyError: 'income' The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:\Users\木南\PycharmProjects\pythonProject1\venv\test.py", line 18, in <module> data['income'] = data['income'].apply(lambda x: 1 if x == '>50K' else 0) File "C:\Users\木南\PycharmProjects\pythonProject1\venv\lib\site-packages\pandas\core\frame.py", line 3761, in __getitem__ indexer = self.columns.get_loc(key) File "C:\Users\木南\PycharmProjects\pythonProject1\venv\lib\site-packages\pandas\core\indexes\base.py", line 3654, in get_loc raise KeyError(key) from err KeyError: 'income' Process finished with exit code 1

这个错误是由于数据集中不存在名为 `income` 的列引起的。在第14行中，代码使用 `data.drop('income', axis=1)` 删除了目标变量 `income` 后的数据集作为训练集和测试集的特征集，但是在第18行中，代码又尝试去访问 `data['income']` 进行二元编码，从而引发了 KeyError 错误。建议在进行数据集划分前，先检查数据集中是否存在目标变量 `income`，例如使用 `print(data.columns)` 查看数据集中包含哪些列。

相关问题

报错C:\Users\Administrator\PycharmProjects\pythonProject\venv\Scripts\python.exe C:/Users/Administrator/PycharmProjects/pythonProject/main.py Traceback (most recent call last): File "C:/Users/Administrator/PycharmProjects/pythonProject/main.py", line 3, in <module> conn = pymysql.connect(host='localhost', user='root', password='password') File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 352, in __init__ self.connect() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 636, in connect self._request_authentication() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 911, in _request_authentication auth_packet = self._read_packet() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 729, in _read_packet packet.raise_for_error() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\protocol.py", line 221, in raise_for_error err.raise_mysql_exception(self._data) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\err.py", line 143, in raise_mysql_exception raise errorclass(errno, errval) pymysql.err.OperationalError: (1045, "Access denied for user 'root'@'localhost' (using password: YES)")

这个错误提示是因为连接MySQL数据库时，用户名或密码不正确，你需要检查一下你的用户名和密码是否正确。同时，也需要确保你的MySQL服务器已经启动，并且允许远程连接。

如果你忘记了MySQL的用户名和密码，可以尝试使用以下命令来重置密码：

1. 停止MySQL服务

sudo service mysql stop

2. 以跳过授权方式启动MySQL

sudo mysqld_safe --skip-grant-tables --skip-networking &

3. 使用root用户登录MySQL

mysql -u root

4. 切换到mysql数据库

use mysql;

5. 更新root用户的密码

update user set authentication_string=password('your_new_password') where user='root' and Host ='localhost';

6. 刷新权限

flush privileges;

7. 退出MySQL并重新启动服务

exit;
sudo service mysql start

然后，你可以使用新的密码来连接你的MySQL数据库了。

Traceback (most recent call last): File "C:\Users\Administrator\PycharmProjects\pythonProject\main.py", line 972, in run driver = webdriver.Firefox(service=service, options=options) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 68, in __init__ super().__init__(command_executor=executor, options=self.options) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 206, in __init__ self.start_session(capabilities) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 291, in start_session response = self.execute(Command.NEW_SESSION, caps)["value"] File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 346, in execute self.error_handler.check_response(response) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 245, in check_response raise exception_class(message, screen, stacktrace) selenium.common.exceptions.InvalidArgumentException: Message: binary is not a Firefox executable None

这个错误是由于selenium无法找到Firefox可执行文件引起的。在使用selenium的Firefox驱动程序时，需要指定正确的Firefox可执行文件路径。

要解决这个问题，你可以尝试以下几种方法之一：

1. 指定Firefox可执行文件路径：在创建WebDriver对象时，通过`executable_path`参数指定正确的Firefox可执行文件路径。例如：

   from selenium import webdriver

   driver = webdriver.Firefox(executable_path='path_to_firefox_executable')

请确保`path_to_firefox_executable`是你的系统上实际的Firefox可执行文件路径。

2. 更新或重新安装Firefox浏览器：确保你的Firefox浏览器是最新版本，并且与你使用的selenium版本兼容。如果已经安装了最新版本的Firefox，请尝试重新安装它。

3. 检查Firefox驱动程序版本：确保你使用的selenium库和Firefox驱动程序是兼容的。如果你使用了最新版本的selenium，请确保下载并使用对应版本的Firefox驱动程序。

请根据你的具体情况选择适合你的解决方法。希望能帮到你！如果还有其他问题，请随时提问。