__init__.py

import os
from flask import Flask, url_for, redirect
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
from flask_login import UserMixin, LoginManager, current_user




app = Flask(__name__)

#################################
############ CONFIGURATIONS #####
#################################
# export SECRET_KEY=myskey
# set SECRET_KEY=mykey

app.config['SECRET_KEY'] = 'mykey'

#################################
#### DATABASE SETUPS #############
#################################

basedir = os.path.abspath(os.path.dirname(__file__))
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False

db = SQLAlchemy(app)
Migrate(app, db)


###########################
#### LOGIN CONFIGS #######
#########################

login_manager = LoginManager()

# We can now pass in our app to the login manager
login_manager.init_app(app)

# Tell users what view to go to when they need to login.
login_manager.login_view = "core.index"


###########################
#### BLUEPRINT CONFIGS #######
#########################

# Import these at the top if you want
# We've imported them here for easy reference

from invoice.core.views import core
from invoice.application.views import application

# Register the apps
app.register_blueprint((core))
app.register_blueprint((application))