How to make parser auto-resume from the moment of break or from the moment of stop by Api Python?

Question

Python

The parser made everything works in the database is entered, the PostgreSQL database. Pure Python code. But after that, I stop it, for example, at the 1000th element, and then start it again, it starts pulling out the elements from the beginning, duplicating them. I don’t care about duplicates now, I need to auto-renew parsing from the moment it was interrupted or stopped. Please tell me how to implement this...))

Answer 1

Well, at each iteration, save the current value to a file, and read from there at startup. Damn, what's the problem?
UPD:

#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ в рот мне ноги. какой же здесь прокомментированный и отформатированный код :( +++++++++++++++++++++++++++++++++++++++++