make credential file: credential.py
.
and set following key and tokens:
API_KEY = ""
SECRET_KEY = ""
BEARAR_TOKEN = ""
ACCESS_TOKEN= ""
ACCESS_TOKEN_SECRET = ""
% python3 -m venv venv
% . venv/bin/activate
% make pip
% python get_follower.py
input username: susumuis # input twitter username
and read [username].output.csv