Python access to project root directory

Question

Below folder structure of my application:

rootfolder
          /subfolder1/
          /subfolder2
          /subfolder3/test.py

my code inside of the subfolder3. But I want to write output of the code to subfolder1.

script_dir = os.path.dirname(__file__)

full_path = os.path.join(script_dir,'/subfolder1/')

I would like to know how can I do this wihout importing full path to directory.

Answer 1

It sounds like you want something along the lines of

project_root = os.path.dirname(os.path.dirname(__file__))
output_path = os.path.join(project_root, 'subfolder1')

The project_root is set to the folder above your script's parent folder, which matches your description. The output folder then goes to subfolder1 under that.

I would also rephrase my import as

from os.path import dirname, join

That shortens your code to

project_root = dirname(dirname(__file__))
output_path = join(project_root, 'subfolder1')

I find this version to be easier to read.