Dir Ops

[Larz60+]

If directory structure is setup using pathlib instead of os, then you don't have a need to save in a variable.
I still use os once in my program to set a starting directory and then set all other directories relative to that.
example:

class MyPths:
    def __init__(self):
        # Anchor starting path
        os.chsir(os.path.abspath(os.path.dirname(__file__)))

        self.srcpath = Path('.')
        self.project_home = self.srcpath / '..'
        self.datapath = self.project_home / 'data'

    def project(self):
        # To create a file in datapath
        project_data_file = self.datapath / 'MyData.zig'

        # Once defined, you can now do many things:

        # To open datafile:
        with project_data_file.open() as fp:
            zingo = fp.read()
        
        # to create a new directory in datapath
        mynewdir = self.datapath / 'mynewdir'
        # create it if it doesn't already exist
        mynewdir.mkdir(exist_ok=True)

        # display filename:
        print(mynewdir.name)

        # get absolute path
        print(mynewdir.resolve())

        # get list of files in datapath
        print([filenames for filenames in mynewdir.iterdir() if filename.is_file()])
        # or to save
        filelist = [filenames for filenames in mynewdir.iterdir() if filename.is_file()]

        # get a list of directories in datapath
        dirs = [dirnames for dirnames in self.datapath.iterdir() if dirnames.is_dir()]

        # and much much more, see: https://docs.python.org/3/library/pathlib.html