How to get all of the immediate subdirectories in Python

I'm trying to write a simple Python script that will copy a index.tpl to index.html in all of the subdirectories (with a few exceptions).

I'm getting bogged down by trying to get the list of subdirectories.

---

import os
def get_immediate_subdirectories(a_dir):
    return [name for name in os.listdir(a_dir)
            if os.path.isdir(os.path.join(a_dir, name))]

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Why has no one mentioned glob ? glob lets you use Unix-style pathname expansion, and is my go to function for almost everything that needs to find more than one path name. It makes it very easy:

from glob import glob
paths = glob('*/')

Note that glob will return the directory with the final slash (as unix would) while most path based solutions will omit the final slash.

---

import os, os.path

To get (full-path) immediate sub-directories in a directory:

def SubDirPath (d):
    return filter(os.path.isdir, [os.path.join(d,f) for f in os.listdir(d)])

To get the latest (newest) sub-directory:

def LatestDirectory (d):
    return max(SubDirPath(d), key=os.path.getmtime)

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