import os, psycopg2, psycopg2.extras
from flask import Flask, request, session, g, redirect, url_for,
    abort, render_template, flash

app = Flask(__name__)
app.config.from_object(__name__)

app.config.update(dict(
    SECRET_KEY='development key',
    USERNAME='admin',
    PASSWORD='default'
))

def connect_db():
    """Connects to the specific database."""
    rv = psycopg2.connect(database='database_name', user='username')
    return rv