Oracle Database Discussions

Hi

I am having a trouble with my cx_oracle,sqlalchemy and oracle

My test program is as follows:

import pkg_resources
pkg_resources.require("cx-Oracle>=5.0.3")
import cx_Oracle
import sqlalchemy
from sqlalchemy.sql import select

db=sqlalchemy.create_engine('oracle://ora:ora@localhost')
conn = db.connect()

result = conn.execute("SELECT * from dummy")

print "Hello"
print result
for row in result:
print row
conn.close()

I am in this trouble for create_engine,
.create_engine('oracle://ora:ora@localhost') Works fine and am geting result.

.create_engine('oracle://ora:ora@localhost'/ora)-----where ora i mean to my schema
does not works could you please help to know what is the problem and the resolution.

THANKS