Python Script to pull 5-letter words from txt files for a wordle clone

pull_5_letter_words.py

# This is a good beginner script for those learning python and want to learn about opening, reading, writing, and closing      
# files. I commented out print statements that were used for debugging. If you're learning, I recommend uncommenting those      
# print statements to get a good understanding of what's happening in each function. 
#
# I wrote this python script to pull out 5 letter words from a directory full of txt files with Italian words. There were no  
# accents in the plain text wordlists except for some words with an apostraphe at the end, such as "cioe'" Row 29 and 30 were  
# added to ignore those words. 
#
# One big advantage I had was that these txt files had a new word on each line, making it really easy to extract the correct  
# length words. You could easily reuse this with password text files used for bruteforce dictionaries. 
#
# The script will look through all files in a directory with .txt as the extension, look through each line, ensure the word is 
# five letters and doesn't contain an apostraphe, and then write those words to a new file, in a different directory. The     
# final file is also .txt so placed in a results directory so the script doesn't read the new file too. 
#
# Good luck and let me know if you have any quesitons!

import re
import os
from os import listdir

def findfiles():
    path = "script_dir/"
    files = os.listdir(path)
    for file in files:
        match = re.search("\.txt$", file)
        if match:
            #print(file)
            readfile(file)

def readfile(file):
    file = open("script_dir/" + file, encoding='ISO-8859-1')
    for words in file:
        words = file.readline()
        letters = words.strip()
        #print(letters)
        eachword(letters)
        
def eachword(letters):
    #print(len(letters))
    length = len(letters)
    regex = re.compile("'")
    if (regex.search(letters) == None) and length == 5:
        writeresults(letters)
        #print(letters)

def writeresults(letters):
    write = open("script_dir/results/final_words.txt", 'a')
    write.write("'"+letters+"'"+","+"\n")
    write.close

if __name__ == "__main__":
  findfiles()