create_db.py

import os
from psycopg2 import connect
from psycopg2.extensions import ISOLATION_LEVEL_AUTOCOMMIT


if __name__ == "__main__":
    con = connect(
        host=os.environ["DJANGO_DB_HOST"],
        port=os.environ["DJANGO_DB_PORT"],
        user=os.environ["DJANGO_DB_USER"],
        password=os.environ["DJANGO_DB_PASSWORD"],
        dbname=None,
    )
    con.set_isolation_level(ISOLATION_LEVEL_AUTOCOMMIT)

    cur = con.cursor()
    cur.execute("CREATE DATABASE " + DB["NAME"])
    cur.close()

    con.close()