Mod-New Similarity

import difflib
import praw

def unique_fetched():

    master_dict = {}
    times_to_check = 11
    i = 0
    fetch_limit = 151
    
    while i < times_to_check:
        print("\nGetting round {}...".format(i+1))
        posts = list(reddit.subreddit('mod').new(limit=fetch_limit))
        posts.reverse()
    
        master_dict[i] = [x.id for x in posts]
        i += 1
        print('-------------')
    
    return master_dict


def process_data():
    data = unique_fetched()
    print("Set Number | % Similarity Compared to Set Zero\n-----------|----------------------------------")
    for seq in data:
        try:
            sm = difflib.SequenceMatcher(None, data[seq], data[seq+1])
            print("| Set {} | {:.2%} similarity |".format(seq + 1, sm.ratio()))
        except KeyError:
            pass