Which service to use to store and access a python dictionary file in a heroku project?

Question

Python

There is a dictionary dictionary. Inside the python3 script, the dictionary file is loaded, processed, entries are added to the dictionary, and saved using pickle.dump. Recommend a cloud with which these actions will be possible through api (preferably a simple api) inside the project on heroku (in the free version of heroku, user files are deleted when the application is restarted)

Answer 1

Option 1. Use a database. Heroku has, like, a free tier for the database. You can use an external one, such as the free tier at mlab.com.
Option 2. Use Yandex.Disk (or equivalent) with WebDav access.