slate_deeperer.py

import json, os

files = os.listdir()

for m in files:
    if 'quark_slate' in m and not 'quark_deepslate' in m:
        id = None
        with open( m, 'r') as j:
            id = json.loads(j.read())

        with open(m[:-10] + 'deepslate.json', 'w', encoding='utf-8') as j:
            json.dump({'parent': id['parent'][:-5]+'deepslate'}, j, ensure_ascii=False, indent=2)