alembic / flask-sqlalchemy (alembic/env.py)

gistfile1.py

import os
import sys
from alembic import context
from sqlalchemy import engine_from_config
from logging.config import fileConfig

sys.path.append(os.getcwd())

from models import metadata
from myapp import app

config = context.config
config.set_main_option('sqlalchemy.url', app.config['SQLALCHEMY_DATABASE_URI'])
fileConfig(config.config_file_name)

target_metadata = metadata