How to make the recursion work to show all the directories and their subdirectories?

Question

In this code, I want to print all the directories and their subdirectories and so on. I used recursion for that. But it is giving me the following error?

Error

Traceback (most recent call last):
  File "main.py", line 20, in <module>
    filesystem("/home/runner/TestP1")
  File "main.py", line 17, in filesystem
    filesystem(dirs)
  File "main.py", line 11, in filesystem
    dirfiles = os.listdir(dirname)
TypeError: listdir: path should be string, bytes, os.PathLike, integer or None, not list

Code

import os

def filesystem(dirname):
    dirfiles = os.listdir(dirname)
    fullpaths = map(lambda name: os.path.join(dirname, name), dirfiles)
    dirs = []

    for file in fullpaths:
        if os.path.isdir(file): dirs.append(file)
    filesystem(dirs)
    print(list(dirs))

filesystem("/home/runner/TestP1")

Have you considered using `os.walk()` / `os.fwalk()`? – Klaus D. Mar 11 '21 at 09:10 — Klaus D., Mar 11 '21 at 09:10

score 0 · Accepted Answer · answered Mar 11 '21 at 09:11

0

Replace filesystem(dirs) by:

for dirname in dirs:
    filesystem(dirs)

Also note that:

In 2021, you should be using pathlib. Especially glob is unbelievably useful.
In Linux, take care with symlinks / hardlinks, which might easily cause endless recursion.

answered Mar 11 '21 at 09:11

Torben Klein

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https://stackoverflow.com/questions/6639394/what-is-the-python-way-to-walk-a-directory-tree – Marcin Cuprjak Mar 11 '21 at 09:23

How to make the recursion work to show all the directories and their subdirectories?

1 Answers1