recursively walk directories and move files to a single output directory

rename_and_move.py

import glob
import os
import shutil
import datetime
import random
import string

FILE_DIR = "P:\\original\\"
OUTPUT_DIR = "P:\\destination\\"
files = []

def get_random_string(string_len=10):
    letters = string.ascii_lowercase
    return ''.join(random.choice(letters) for i in range(string_len))

suffix_list = []
for root, d, file_list in os.walk(FILE_DIR):
    for file in file_list:
        files.append(os.path.join(root, file))

error_files = []
for file in files:
    fn, suffix = os.path.splitext(file)
    file_path, file_name = os.path.split(os.path.abspath(file))
    random_string = get_random_string()
    cleaned_file_name = file_name.replace(" ", '.').replace(suffix, '')
    
    # inserting random string in case some files have the same name from different directories
    dest = "{}\\{}.{}{}".format(file_path, cleaned_file_name, random_string, suffix)
    try:
        os.rename(file, dest)
        shutil.move(dest, OUTPUT_DIR)
    except:
        error_files.append(file)

#print out any files that didn't get moved
print('\n'.join(error_files))