from sqlalchemy import create_engine
from sqlalchemy import MetaData
from sqlalchemy import Table
from sqlalchemy import Column
from sqlalchemy import Integer, String

db_url  = 'sqlite:///db.sqlite'
engine = create_engine(db_url )

# Create a metadata instance
metadata = MetaData(engine)
# Declare a table
table = Table('Example',metadata,
              Column('id',Integer, primary_key=True),
              Column('name',String))
# Create all tables
students = Table(
   'students', metadata, 
   Column('id', Integer, primary_key = True), 
   Column('name', String), 
   Column('lastname', String),
)
metadata.create_all(engine)