Python Error: Issues with 'config" being callable

I am following instructions from a book that goes through how to create SQL tables with PostgreSQL within Python.

import psycopg2import configdef CreateTables():    tablesql = ("""        CREATE TABLE stock (                            dt TIMESTAMP without time zone NOT NULL,                            high NUMERIC NOT NULL,                            low NUMERIC NOT NULL,                            open NUMERIC NOT NULL,                            close NUMERIC NOT NULL,                            volume NUMERIC NOT NULL,                            adj_close NUMERIC NOT NULL,                            CONSTRAINT "GOOG_pkey" PRIMARY KEY (dt)                           )"""    )    conn = None    try:        params = config()        conn = psycopg2.connect(**params)        cur = conn.cursor()        for table in tablesql:            cur.execute(table)        cur.close()        conn.commit()    except (Exception, psycopg2.DatabaseError) as error:        print(error)    finally:        if conn is not None:            conn.close()if __name__ == '__main__':    CreateTables()

When I execute the above code, Python tells me 'config' is not callable.

But when I do from config import config, I get ImportError: cannot import name 'config' from 'config'.

I tried uninstalling config then reinstalling it to version 0.5.0.post0 using pip install config.

What's going on? Any help would be great.

Thank you,Cindy