Sqlalchemy template, because I hate repeating myself

sqlalchemy_template.py

from sqlalchemy import create_engine, Column, Integer, String # , ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker # , relationship, backref

engine = create_engine('sqlite://:memory:')
Base = declarative_base()

# Table classes here

# example:

# class Reaction(Base):
#   __tablename__ = 'reactions'
#
#   id = Column(Integer, primary_key=True)
#   content = Column(String)
#
#   def __init__(self, content):
#       self.content = content
#
#   def __repr__(self):
#       return '<Reaction {0}'.format(self.content[:5]

Base.metadata.create_all(engine)

Session = sessionmaker(bind=engine)