<filename>flask_api/app/api/__init__.py
from flask import Blueprint
api_bp = Blueprint('api', __name__)
from app.api.views import api
api.init_app(api_bp)

<filename>flask_api/app/api/__init__.py
from flask import Blueprint
api_bp = Blueprint('api', __name__)
from app.api.views import api
api.init_app(api_bp)
