send all files including files in sub folders

import math
import os
import re
import time

import color
from discord_webhook import DiscordWebhook

from send_discord_files import webhook_urls


def get_file_info(folder_path, filename):
    name = ''.join(i for i in filename if i not in '\/:*?<>|')
    full_path = os.path.join(folder_path, filename)
    size = os.path.getsize(full_path) / (1024 * 1024)
    return name, full_path, size


def rate_limit(r):
    if r.status_code == 429:
        error_msg = r.json()
        rate_limit_wait = roundup(int(error_msg['retry_after']), 1000) / 1000
        color.cprint_red(f'Sleeping {rate_limit_wait}s because of a hard rate limit')
        time.sleep(rate_limit_wait)
        if error_msg['global']:
            color.cprint_magenta('Global rate limit hit!')
        return True
    elif int(r.headers['x-ratelimit-remaining']) == 0:
        rate_limit_wait = abs(int(r.headers['x-ratelimit-reset']) - time.time() + 0.2)
        color.cprint_yellow(f'sleeping {round(rate_limit_wait, 4)}s because of a soft rate limit')
        time.sleep(rate_limit_wait)
        return False


def roundup(x: int or float, base: int):
    return int(math.ceil(x / float(base))) * base


def get_folders(path):
    return [dirpath for dirpath, _, _ in os.walk(path)]


# Folder Path
folder = r'C:\Normal\Path'
# Change default username:
username = ''
# Change default avatar:
avatar_url = ''
# Use own Webhook URL here:
webhook_url = webhook_urls.spam

file_tree = []
for sub_folder in get_folders(folder):
    (_, _, filenames) = next(os.walk(sub_folder))
    if filenames:
        try:
            filenames.sort(key=lambda x: int(re.sub('\D', '', x)))
        except ValueError:
            pass
        file_tree.append((sub_folder, filenames))

discord_files = [get_file_info(folder_path, file) for folder_path, files in file_tree for file in files]

counter = 0
for file_name, file_path, file_size in discord_files:
    if file_size >= 8:
        print(f'{file_name} is with {round(file_size, 2)}MB to large to send to discord')
        counter += 1
        continue
    webhook = DiscordWebhook(url=webhook_url, username=username, avatar_url=avatar_url)
    with open(file_path, "rb") as f:
        webhook.add_file(file=f.read(), filename=file_name)
    response = webhook.execute()
    if rate_limit(response):
        # repeat the failed request
        failed_file = [(i, file_info) for i, file_info in enumerate(discord_files) if file_info[0] == file_name][0]
        discord_files.insert(failed_file[0] + 1, failed_file[1])
    color.cprint_green(f'{len(discord_files) - counter} files remaining, send {counter} files')
    counter += 1

webhook = DiscordWebhook(url=webhook_url, username=username, avatar_url=avatar_url, content='Done')
webhook.execute()