I tend to get hot comments and replies in a subreddit and I separate the program into two steps:

Step1: Retrieve submissions from a dict(which include all submission I want) using the code reddit.submission .Because I want to create dataset used for chat, I should promise the comment have at least one reply. So next I check the hot comments top 100 of this submission and their replies, record comments' id and their corresponding replies' id by code submission.comments, top_level_comment.id and second_level_comment.id. And I can get a file loading all comments and corresponding replies id.

Step 2: I extract hot comments and their replies by code reddit.comment(id=i) from file I got in step 1 .

As the title said, my program is slow and I checked the program. Then, I find the step 2 cost most time .Then I used reddit.auth.limits['remaining'] to check requests and realized every time I extract comment by reddit.comment(id=i), it will send a request.

So, if it is necessary to reduce this kind of code: top_level_comment.id, second_level_comment.id, reddit.comment(id=i)?