[Python3] Extract String from File in Directory

Extract String from File in Directory Code

import re
import os

directory = r"./" # directory path

files = os.listdir(directory)
for f1 in files:
    filename = os.path.join(directory, f1)
    with open(filename, encoding='Latin-1') as f2:
        str_list = re.findall("[A-Za-z0-9/\-:;.,_$%'!()[\]<> \#@]+", f2.read())
        with open(os.path.join(directory,"strings.txt"),"a+") as save_file:
            for str in str_list:
                save_file.write(str+"\n")
print("Complete")