I am a novice specialist, can someone tell me how to make a script correctly. To output MD5, SHA1, SHA256 to a separate file OUT.txt
All files in the directory

#!/usr/bin/python
import hashlib
import os
import sys
import checksumdir
import dirhash

from checksumdir 
directory  = 'C:UsersAdminDocumentsPosrtgerSQLRhel7'
md5hash    = dirhash(directory, 'md5')
sha1hash   = dirhash(directory, 'sha1', excluded_files=['package.json'])
sha256hash = dirhash(directory, 'sha256', excluded_extensions=['pyc'])

if len(sys.argv) < 2:
    sys.exit('Usage: %s filename' % sys.argv[0])

if not os.path.exists(sys.argv[1]):
    sys.exit('ERROR: File "%s" was not found!' % sys.argv[1])

with open(sys.argv[1], 'rb') as f:
    sha1 = hashlib.sha1()
    sha256 = hashlib.sha256()
    md5 = hashlib.md5()

    while True:
        chunk = f.read(16 * 1024)
        if not chunk:
            break
        sha1.update(chunk)
        sha256.update(chunk)
        md5.update(chunk)

    print("SHA1: %s" % sha1.hexdigest())
    print("SHA256: %s" % sha256.hexdigest())
    print("MD5: %s" % md5.hexdigest())

try:
    input("Press enter to terminate the program")
    hash = checksumdir.dirhash("c:temp")
except:
    pass