Renaming folders and files inside it

Question

This code above renames all files in a set of folders to looks like "File x at x levels deep" using its current file name details, but I want it to rename the folders of these files too to "Folder x at x levels deep", but it gives an error saying that the folder is already opened in another process. The comments above is what I did until now (without success), and the rest in working as wanted.

import os, re

def everydirectory(path):
    for file in os.listdir(path):
        file_w_path = os.path.join(path, file)
        os.chdir(path)
        if os.path.isdir(file_w_path):
            os.chdir(file_w_path)
            # complete_folder_name = re.search("(deep)([0-9])(FOLDER)([0-9])", file)
            # deepness = complete_folder_name.group(2)
            # folder_number = complete_folder_name.group(4)
            # new_folder_name = "Folder {} at {} levels deep".format(folder_number, deepness)
            # new_folder_name_w_path = os.path.join(path, new_folder_name)
            # os.rename(file_w_path, new_folder_name_w_path)
            # print("Folder " + file_w_path + " renamed to " + new_folder_name_w_path)
            everydirectory(file_w_path)
        elif os.path.isfile(file_w_path):
            path = os.path.join(path, os.getcwd())
            extension = os.path.splitext(file_w_path)[1]
            complete_file_name = re.search("(deep)([0-9])(FILE)([0-9])", file)
            deepness = complete_file_name.group(2)
            file_number = complete_file_name.group(4)
            new_file_name = "File {} at {} levels deep{}".format(file_number, deepness, extension)
            new_file_name_w_path = os.path.join(path, new_file_name)
            os.rename(file_w_path, new_file_name_w_path)
            print("File " + file_w_path + " RENAMED TO " + new_file_name_w_path)

directory = input("Where is the files?")
everydirectory(directory)

I think the problem is that it renames the file after the programs renames the folder, making it "lose" the original location of the file. Could someone check out what am I doing wrong? Thanks!

Here is the set of folders/files and how I wanted it to look after running the script: https://drive.google.com/drive/u/1/folders/0B8pLYoI76JJiOEtpNzdaYVZrVXM

Answer 1

I refactored your code a bit in order to make it work. I also kept track of the deep in the recursion, but you could also rely on your filenames if you prefer:

import os, re
import os.path
from contextlib import contextmanager

@contextmanager
def change_dir(directory):
    wd = os.getcwd()
    try:
        os.chdir(directory)
        yield directory
    finally:
        os.chdir(wd)


def rename_file(filename, deep, is_dir=False):
    if is_dir:
        complete_filename = re.search("(deep)([0-9])(FOLDER)([0-9])", filename)
        file_number = complete_filename.group(4)
        new_filename = "Folder {} at {} levels deep".format(file_number, deep)
    else:
        complete_filename = re.search("(deep)([0-9])(FILE)([0-9])", filename)
        file_number = complete_filename.group(4)
        extension = os.path.splitext(filename)[1]
        new_filename = "File {} at {} levels deep{}".format(file_number, deep, extension)

    os.rename(filename, new_filename)


def every_directory(path, deep=0):
    deep += 1
    for file in os.listdir(path):
        is_dir = False
        filepath = os.path.join(path, file)
        if os.path.isdir(filepath):
            every_directory(filepath, deep)
            is_dir = True
        with change_dir(path):
            rename_file(file, deep=deep, is_dir=is_dir)