NameError: name 'app' is not defined with Flask

I have the following *structure* in my project

\ myapp
\ app
__init__.py
views.py
run.py

And the following code:

**run.py**

from app import create_app

if __name__ == '__main__':
app = create_app()
app.run(debug=True, host='0.0.0.0', port=5001)

**views.py**

@app.route("/")
def index():
return "Hello World!"

**__init__.py**

from flask import Flask


def create_app():
app = Flask(__name__)
from app import views
return app

I'm trying to use the `factory design pattern` to create my `app` objects with different `config` files each time, and with a subdomain dispatcher be able to create and route different objects depending on the `subdomain` on the user request.

I'm following the Flask documentation where they talk about, all of this:

- [Application Context](

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)
- [Applitation Factories](

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)
- [Application with Blueprints](

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)
- [Application Dispatching](

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)

But I couldn't make it work, it seems that with my actual project `structure` there are no way to pass throw the `app` object to my `views.py` and it throw and `NameError`

> NameError: name 'app' is not defined

After do what Miguel suggest (use the `Blueprint`) everything works, that's the final code, working:

**__init.py__**

...

def create_app(cfg=None):
app = Flask(__name__)
from api.views import api
app.register_blueprint(api)
return app

**views.py**

from flask import current_app, Blueprint, jsonify
api = Blueprint('api', __name__)

@api.route("/")
def index():
# We can use "current_app" to have access to our "app" object
return "Hello World!"