import concurrent.futures
from fnmatch import fnmatch
import random
import string

def str_generator(size=10, chars=string.ascii_uppercase + string.digits):
   return ''.join(random.choice(chars) for _ in range(size))


def foo(strs, ref):
    for s in strs:
        fnmatch(ref, s)

some_strings = [str_generator() for _ in range(500)]
with concurrent.futures.ThreadPoolExecutor() as executor:
    futures = [executor.submit(foo, some_strings, some_strings[0]) for _ in range(8)]
    for f in futures:
        f.result()