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Python Python for File Systems Project Starter Solid Paths

Posted by William Hall
William Hall
19,502 Points

i have no clue how to do this

I'd like you to change how get_root works. I still want to ask for a path but if the path is relative, change it into an absolute path. You can assume that the path is relative from the current working directory. The function should always return an absolute path.

builder.py 
import pathlib
import os



def get_root():
    root = pathlib.PurePath(
        input("What's the full path where you'd like the project? ")
    )
    if not root.is_absolute():
        return get_root()
    return root

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

Hey William Hall, let's break it down.

The starter code keeps recursively calling the defined function get_root if the path is not absolute. Since the task is to return an absolute path if an non-absolution path is input, replacing the recursive call with an absolute path created from the non-absolution path input should work. The form would be:

    if not root.is_absolute():
        return <absolution path created from root variable>
    return root

One way to get an absolution path is to prepend current working directory to the relative path to get an absolution one. Looking at the documentation for Path.cwd(), this method gives the path to the current working directory.

Looking at the documentation for PurePath(), a pure path can be created from path segments. Using PurePath() with the cwd and root segments should create the full absolution path ready for return.

Post back if you need more help. Good luck!!

William Hall
William Hall
19,502 Points

sorry, but this is not "laymen" enough for me to grasp from your answer unfortunately. Thanks for responding though.