<filename>__init__.py
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate

app = Flask(__name__)
app.config.from_object('settings')
db = SQLAlchemy(app)

migrate = Migrate(app, db)

from request import views
from client import views
from product import views

<filename>__init__.py
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate

app = Flask(__name__)
app.config.from_object('settings')
db = SQLAlchemy(app)

migrate = Migrate(app, db)

from request import views
from client import views
from product import views
