write code that resides in parent directory

[Larz60+]

The following will get the absolute paths.
Note that root_dir will get path to the file, including the python file name.
If you just wanted the current path, use root_dir = Path('.')
You would also have to assure that the current path is the the same as __file__ path.
You can still use __file__. but to get previous directory,would need parent_dir = root_dir.parent.parent.absolute()

root_dir = Path(__file__).absolute()
print(root_dir)
parent_dir = root_dir.parent.absolute()
print(parent_dir)