2.0.3

1. Fix a crucial error where class attribute values were tampered with in the logic block for importing real code, which caused the last release to fail.
2. Fix a potential error where attempting to access the "ge" magic attribute would raise an exception if the magic attribute did not exist, but also existed in the builtins module.
3. Refactor (improve) the method of obtaining version information in setup by directly extracting it from package.__doc__, rather than opening a file.
4. Adjust the classification information of the open-source library on PyPi.

1.修复一个严重的错误，在导入真实代码的逻辑块中篡改类属性值的错误，这导致上次未成功发布版本。
2.修复一个可能发生的错误，在尝试获取 ge 的魔法属性时，如果该魔化属性不存在，同时该魔化属性又存在于 builtins 模块，将引发异常。
3.重构（改进） setup 中获得版本信息的方案，直接从 package.__doc__ 中提取，而不再打开文件。
4.调整在PyPi上的开源库分类信息。