A python sample snippet for reordering bip39 mnemonic seed words into a valid bip39 seed (corrects word order to fix checksum/compliance with bip39)

combos.py

#This snippet takes words intended for a bip39 mnemonic seed as a list and reorders them into a seed where the checksum validates.
#Often people want to choose their own seed words but the resulting order doesn't adhere to the bip39 specification,
#This is a way to force your favourite words into a valid hd bip39 seed. Disclaimer: Use true random entropy to select your words!
#All possible combinations are written to a text file, but that's probably going to be a lot of choice so you should probably 
#Limit the number of itterations or cancel it a ways into processing

import itertools
import os
import binascii
import mnemonic

#sample words, go make your own at https://dcpos.github.io/bip39/
word_list = ["situate", "summer", "amused", "reunion", "spare", "school", "assume", "wolf", "embark", "share", "repeat", "bar"]

def make():
    m = mnemonic.Mnemonic('english')
    text_file = open("combos_valid.txt", "w")
    for subset in itertools.permutations(word_list, len(word_list)):
        words_to_write = []
        for word in subset:
            words_to_write.append(word)
        if len(subset) == len(word_list):
            if m.check(' '.join(words_to_write)):
                for w in words_to_write:
                    text_file.write(w + ' ')
                text_file.seek(-1, os.SEEK_CUR)
                text_file.write('\n')

hello sir ..how can i use this script ..any tutorial i can look at ..pls reply ..my mnemonic seed is not in order after i inserted in my nano s after update resulted in factory reset..thank u..