Check Comment Karma for Posting

import json
import traceback
import time
import requests

import praw

BOT_NAME = 'Enforce Minimum Score Bot'
VERSION_NUMBER= '0.1'
USER_AGENT = BOT_NAME + ' ' + VERSION_NUMBER + ',  a service bot for this subreddit. Written by u/kungming2.'
SUBREDDIT = ""
USER_NAME = ""
PROCESSED_USERS = []  # A list of already checked users that have enough karma.
WAIT = 30

print('\n|======================Logging in...======================|')


reddit = praw.Reddit(client_id="",
                     client_secret="", password='',
                     user_agent=USER_AGENT, username=USER_NAME)


def check_user_karma(username, subreddit_name):
    """
    This function takes a username and the name of a subreddit, then queries Pushshift to add up the score
    of comments that the user has on that community. It returns True if the user has met the minimum standard of
    comment karma, and False if not.
    """

    list_of_karma = []
    minimum_comment_karma = 100
    can_post = True

    # Form our search query.
    api_search_query = ("https://api.pushshift.io/reddit/search/comment/?subreddit={}"
                        "&author={}&sort_type=score&sort=desc&aggs=author&size=500")
    api_search_query = api_search_query.format(subreddit_name, username)

    # Get the data from Pushshift as JSON.
    retrieved_data = requests.get(api_search_query)
    returned_comments = retrieved_data.json()['data']

    # Iterate over the comments and append how much karma they got.
    for item in returned_comments:
        list_of_karma.append(item['score'])

    print("u/{} has a comment score of {} on r/{}.".format(username, sum(list_of_karma), subreddit_name))

    # If the user has less of a score than we want, set the boolean to False.
    if sum(list_of_karma) < minimum_comment_karma:
        can_post = False

    return can_post


def main_stream():
    """
    The main function to fetch comments from the subreddit.
    """

    r = reddit.subreddit(SUBREDDIT)

    for submission in r.stream.submissions():  # Watching the stream...

        try:
            submission_author = submission.author.name
        except AttributeError:
            # Author is deleted. We don't care about this post.
            continue

        if submission_author == USER_NAME:
            # Don't reply to yourself, bot!
            continue
        elif submission_author in PROCESSED_USERS:
            # We've checked this user before and they can post.
            continue

        if submission.saved:  # Saved comments have already been acted on.
            continue

        # Finally, we can act.
        submission.save()  # Save this so we won't process it more than once.

        # If the user doesn't have enough comment score, remove the post.
        if not check_user_karma(submission_author, SUBREDDIT):
            submission.mod.remove()
            print("Removed post by u/{}. Insufficient comment score.".format(submission_author))
        else:
            PROCESSED_USERS.append(submission_author)

    return


while True:
    # noinspection PyBroadException
    try:
        main_stream()
    except Exception as e:
        traceback.print_exc()

    print('The bot will restart in {} seconds. \n'.format(WAIT))
    time.sleep(WAIT)