example_twitter.json

{
    "consumer_key": "",
    "consumer_secret": "",
    "token": "",
    "token_secret": ""
}

twdiff.py

#!/usr/bin/env python3
from collections import ChainMap
import json
from pathlib import Path

from twitter import OAuth
from twitter import Twitter


def _get_file_path(filename: str) -> str:
    return str(Path.home() / filename)


def _json_dump(filename: str, obj) -> None:
    with open(filename, "w") as f:
        json.dump(obj, f)


def _json_load_or_default(filename: str, default=None):
    try:
        with open(filename) as f:
            return json.load(f)
    except Exception:
        return default


CREDENTIALS = _json_load_or_default(
    _get_file_path(".twitter.json"), dict()
)
twi = Twitter(auth=OAuth(consumer_key=CREDENTIALS.get("consumer_key"),
                         consumer_secret=CREDENTIALS.get("consumer_secret"),
                         token=CREDENTIALS.get("token"),
                         token_secret=CREDENTIALS.get("token_secret")))


def main() -> None:
    """Compare followers and followees list with local F/F list."""
    cur = twi.followers.list(count=200, cursor=-1)
    followers = {
        x["id_str"]: (x["screen_name"], x["name"])
        for x in cur["users"]
    }
    while cur["next_cursor"]:
        cur = twi.followers.list(count=200, cursor=cur["next_cursor"])
        followers.update({
            x["id_str"]: (x["screen_name"], x["name"])
            for x in cur["users"]}
        )
    cur = twi.friends.list(count=200, cursor=-1)
    friends = {
        x["id_str"]: (x["screen_name"], x["name"])
        for x in cur["users"]
    }
    while cur["next_cursor"]:
        cur = twi.friends.list(count=200, cursor=cur["next_cursor"])
        friends.update({
            x["id_str"]: (x["screen_name"], x["name"])
            for x in cur["users"]
        })

    friends_before = _json_load_or_default(
        _get_file_path(".friends.json"), dict()
    )
    followers_before = _json_load_or_default(
        _get_file_path(".followers.json"), dict()
    )
    _json_dump(_get_file_path(".followers.json"), followers)
    _json_dump(_get_file_path(".friends.json"), friends)

    users = ChainMap(friends, followers, friends_before, followers_before)
    text = ""
    if set(followers_before.keys()) != set(followers.keys()):

        text += """followers({}->{}):
{}
""".format(
            len(set(followers_before.keys())),
            len(set(followers.keys())),
            "\n".join([
                "- {}: https://twitter.com/{} ({})".format(x, *users[x])
                for x in set(followers_before.keys()) - set(followers.keys())
            ] + [
                "+ {}: https://twitter.com/{} ({})".format(
                    x, *users[x]
                ) for x in set(followers.keys()) - set(followers_before.keys())
            ])
        )
    if set(friends_before.keys()) != set(friends.keys()):
        text += """followees({}->{}):
{}
""".format(
            len(set(friends_before.keys())),
            len(set(friends.keys())),
            "\n".join([
                "- {}: https://twitter.com/{} ({})".format(x, *users[x])
                for x in set(friends_before.keys()) - set(friends.keys())
            ] + [
                "+ {}: https://twitter.com/{} ({})".format(x, *users[x])
                for x in set(friends.keys()) - set(friends_before.keys())
            ])
        )

    print(text)


if __name__ == "__main__":
    main()