models.py

from sqlalchemy import *
from sqlalchemy import Table, Column, DateTime, Integer, String, MetaData
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm             import sessionmaker, scoped_session

engine = create_engine('sqlite:///windowlog.db', echo=True)
Base = declarative_base(bind=engine)
Session = scoped_session(sessionmaker(engine))

class Windowlog(Base) :

	__tablename__ = 'windowlog'

	moment     = Column(DateTime, primary_key=True)
	windowname = Column(String)
	pid        = Column(String)
        bin        = Column(String)
	screenshot = Column(LargeBinary)

	def __init__(self, moment, windowname, pid, bin, screenshot) :
		self.moment     = moment
		self.windowname = windowname
		self.pid        = pid
		self.bin        = bin
		self.screenshot = screenshot

	def __repr__(self) :
		return "<Windowlog('%s', '%s', '%s', '%s')>" % (self.moment, self.windowname, self.pid, self.bin)

Base.metadata.create_all()