database.py

from sqlalchemy import create_engine
from sqlalchemy.dialects.sqlite import *
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base
import os

DATABASE_URL = os.getenv("DATABASE_URL")
engine = create_engine(DATABASE_URL)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()