sqlalchemydemo.py

# http://stackoverflow.com/questions/14249115/serializing-output-to-json-valueerror-circular-reference-detected
from sqlalchemy import *
from sqlalchemy.orm import sessionmaker, scoped_session
from sqlalchemy.sql import text

def f():
    print 'hello'
    engine = create_engine('mysql://readonly:password@192.168.27.183:3306/efn')
    Session = scoped_session(sessionmaker(bind=engine))

    s = Session()
    result = s.execute('SELECT name FROM Answers WHERE answer_ID in (100,101,102) limit 5', {'val': 5})
    print result.fetchall()

products_json = []
for code in best_matching_codes:
    cur = db.cursor()
    query = "SELECT * FROM %s WHERE code LIKE '%s'" % (PRODUCTS_TABLE_NAME, product_code)
    cur.execute(query)
    columns = [desc[0] for desc in cur.description]
    rows = cur.fetchall()
    for row in rows:
        products_json.append(dict((k,v) for k,v in zip(columns,row)))   

return json.dumps(products_json, default = date_handler)

def date_handler(obj):
    if hasattr(obj, 'isoformat'):
        return obj.isoformat()
    else:
        json.JSONEncoder.default(self,obj)

f()