请原谅我，如果这看起来太基础了，但没有完整的代码或输出来检查我在伸展，你是否导入了os？例如，如果test.py包含

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains

如果这看起来过于简单，请原谅我但没有完整的代码或输出来检查我伸展，你导入操作系统？例如，如果test.py包含

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains

如果这看起来过于简单，请原谅我但没有完整的代码或输出来检查我伸展，你导入操作系统？例如，如果test.py包含

Forgive me if this seems too elementary, but without full code or output to examine I am stretching, did you import os? For example if test.py contains