Doctest case embedded in the class documentation for a DAO

database.py

import os
import sqlite3

class DAO(object):
    """
        SQLite3 Data Access Object

        Usage:
        >>> dao = DAO('example.db')
        Database connection initialised
    """

    def __init__(self, db_filepath='example.db'):
        """Initialize DB class variables"""
        self.connection = sqlite3.connect(db_filepath)
        print('Database connection initialised')