在Windows系统中安装BeautifulSoup4后，执行from bs4 import BeautifulSoup时出现错误提示。 1、 将压缩包内的bs4文件夹复制到Python安装目录的lib文件夹中，随后使用Python自带的2to3.py工具，将原适用于Python 2的.py文件自动转换为兼容Python 3的格式，即可完成适配与配置。

The Python language, which is not new but continues to gain momentum and users as if it were, has changed remarkably little since it first was released. I don't mean to say that Python hasn't changed; ...