Taus

print("Получено медиа вложение\n Тип => " + event.attachments['attach1_type'])

photo_id = event.attachments['attach1']
photo_info = vk_sess.photos.get_by_id(photos=photo_id)
photo_urls = {size['type']: size['url'] for size in photo_info['sizes']}

Тогда по event.message_id получаете информацию с помощью метода message.getById, в котором должно быть поле attachments. Описание структуры поля https://vk.com/dev/objects/attachments_m и для photo https://vk.com/dev/objects/photo.

var_dict = {val: var for var, val in mydict.items()}
...
var_dict['val_0'] # returns var_0

mydict # словарь из файла `файл.txt`
stringList # "другой" словарь
dict_for_keyboard = {key: stringList[key] for key in mydict.values()}
...
myMarkup = types.InlineKeyboardMarkup() # опечатка prMarkup?
for key, value in dict_for_keyboard.items():
    myMarkup.add(types.InlineKeyboardButton(text=value + VAR ,callback_data=key ))

import multiprocessing

def f():
    raise ValueError()

with multiprocessing.Pool() as pool:
    for _ in range(10):
        pool.apply_async(f) # no errors

with multiprocessing.Pool() as pool:
    for _ in range(10):
        result = pool.apply_async(f)
        result.get(timeout=1) # raise ValueError

from tqdm import tqdm
...
for div in tqdm(divs):
    # обработка

from tqdm import tqdm
base_urls = [...]
for base_url in tqdm(base_urls):
    hh_parse(base_url, headers)

import concurrent.futures
...
loop = asyncio.get_event_loop()
loop.set_default_executor(concurrent.futures.ThreadPoolExecutor(max_workers=4))
...