required: python3, https://github.com/sixohsix/twitter

switchprof.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys

from twitter import *

from config import *


def main(arg: str):
    api = Twitter(auth=OAuth(
        config['token']['key'],
        config['token']['secret'],
        config['consumer']['key'],
        config['consumer']['secret']))

    # argument is numeric index or key string
    prof = None

    # find matching profile
    for cp in config['profiles']:
        if cp['key'] == arg:
            prof = cp
            break

    if prof is None:
        # find by index
        try:
            config['profiles'][int(arg)]
        except ValueError:
            prof = None

    if prof is None:
        print('invalid argument: ' + arg)
        exit(-1)

    print('uploading profile image...')

    with open(prof['image'], "rb") as image:
        params = {"image": image.read()}
    api.account.update_profile_image(**params)

    print('updating profile...')

    api.account.update_profile(
        name=prof['name'],
        url=prof['url'],
        location=prof['location'],
        description=prof['description'])

    print('successfully changed to ' + prof['name'] + '.')

    exit(0);

if __name__ == '__main__':
    if len(sys.argv) >= 2:
        main(sys.argv[1])
    else:
        main('')