ZdS Converter, pour convertir les mini-tutos en moyen-tutos

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
#  zds-converter.py
#  
#  Licence AGPLv3 by rezemika
#  

import json
import tempfile
import zipfile
import shutil
import os

def remove_from_zip(zipfname, *filenames):
    # https://stackoverflow.com/questions/4653768/overwriting-file-in-ziparchive
    tempdir = tempfile.mkdtemp()
    try:
        tempname = os.path.join(tempdir, 'new.zip')
        with zipfile.ZipFile(zipfname, 'r') as zipread:
            with zipfile.ZipFile(tempname, 'w') as zipwrite:
                for item in zipread.infolist():
                    if item.filename not in filenames:
                        data = zipread.read(item.filename)
                        zipwrite.writestr(item, data)
        shutil.move(tempname, zipfname)
    finally:
        shutil.rmtree(tempdir)

def edit_manifest(manifest):
    new_manifest = json.loads(manifest)
    children = new_manifest["children"]
    new_manifest["children"] = [{
        "object": "container",
        "slug": "the-new-container",
        "title": "The new container",
        "introduction": "introduction.md",
        "conclusion": "conclusion.md",
        "children": children,
    }, ]
    return new_manifest

def mini2medium(filename):
    """
        Converts the archive of a mini-tuto to a medium one.
    """
    new_name = "NEW_{}".format(filename)
    print("Création d'un fichier {}".format(new_name))
    shutil.copyfile(filename, new_name)
    # Gets the old manifest, to edit it later.
    print("Récupération de l'ancien 'manifest.json'")
    with zipfile.ZipFile(new_name, 'r') as new_archive:
        old_manifest = new_archive.read("manifest.json").decode("utf-8")
    # Removes the old manifest from the new archive.
    print("Suppression du 'manifest.json' dans la nouvelle archive.")
    remove_from_zip(new_name, "manifest.json")
    print("Écriture du nouveau 'manifest.json'")
    with zipfile.ZipFile(new_name, 'a') as new_archive:
        new_json = edit_manifest(old_manifest)
        new_archive.writestr("manifest.json", json.dumps(new_json))
    print("Terminé.")
    exit(0)

if __name__ == "__main__":
    filename = input("Entrez le nom complet de l'archive : ")
    mini2medium(filename)