import json class Loader: def load(self, file: str): raise NotImplementedError() def get_entry(self) -> object: raise NotImplementedError() class JSONLoader(Loader): data = None def load(self, file: str): self.data = json.load(open(file)) def get_entry(self): for entry in self.data: yield entry class SQLiteLoader(Loader): def load(self, file: str): pass def get_entry(self) -> object: pass LOADERS = { "json": JSONLoader, "sqlite": SQLiteLoader }