from sqlalchemy import create_engine
from sqlalchemy.orm import declarative_base, sessionmaker # constructeur de classe

db_url = "sqlite:///database/bank.db"

Base = declarative_base()

# moteur_dialect
def get_engine():
    return create_engine(url= db_url)

# session => cursor
def get_session():
    engine = get_engine()
    Session = sessionmaker(bind= engine)
    return Session()