Script to toggle a subreddit setting it any sticky matches a given regexp

sticky_setting_toggle.py

#!/usr/bin/env python
"""Script to toggle a subreddit setting it any sticky matches a given regexp"""

from argparse import ArgumentParser
from praw import Reddit
from re import compile as re_compile

praw_config = {
    'user_agent': __doc__, # change this to be nice to reddit's API guides
}

epilog = """Requires PRAW ^6.0.0.

Note: the parameters to be passed into the reddit instance should be set
in the dictionary above this string in the script file.
Under the chance you have these set in a config file that PRAW will
automatically read, you can leave it as an empty dictionary instead."""

settings_patch = {
    'allow_top': 'default_set',
    'lang': 'language',
    'link_type': 'content_options',
}
sentinel = object()

def main(argv):
    reddit = Reddit(**praw_config)
    subreddit = reddit.subreddit(argv.subreddit_name)
    settings = subreddit.mod.settings()
    setting = settings.get(argv.setting_name, sentinel)
    if setting is sentinel:
        setting = settings[settings_patch[argv.setting_name]]
    to_update = {argv.setting_name: not setting}
    # 3 because 2 stickies and cache glitches might move one to spot 3
    stickies = [post for post in subreddit.hot(limit=3)  
                if post.stickied and argv.sticky_regexp.match(post.title)]
    if stickies and not setting:
        subreddit.mod.update(**to_update)
    elif not stickies and setting:
        subreddit.mod.update(**to_update})

if __name__ == '__main__':
    parser = ArgumentParser(description=__doc__, epilog=epilog)
    parser.add_argument('subreddit_name')
    parser.add_argument('setting_name',
                        help="See https://praw.readthedocs.io/en/v6.0.0/"
                             "code_overview/other/subredditmoderation.html"
                             "#praw.models.reddit.subreddit.Subreddit"
                             "Moderation.update for a list of valid "
                             "settings. Should be a boolean setting.")
    parser.add_argument('sticky_regexp', type=re_compile)
    main(parser.parse_args())