[Tutor] Operational Error. --HELP

[bijoy franco]

Hi,

Python throws OperationalError while trying to do any database operations. I
am using pgdb module.
*
**Code:*import pgdb

__metaclass__=type

class addbook:


conn=pgdb.connect(dsn='localhost:secondbooks',user='postgres',password='postgres1')
        curs=conn.cursor()

        def addBook(self):

                *infunction_curs=self.curs**
*                *infunction_curs.execute('SELECT * FROM table_book')


**error code:*

File "/usr/lib/python2.5/site-packages/pgdb.py", line 197, in executemany
raise OperationalError, "internal error in '%s': %s" % (sql,err)
pg.OperationalError: internal error in 'SELECT * FROM table_book': error
return without exception set

i am not able to do any database operations apart from opening Conection and
assaigning cursor object.

how do i solve this. pls help

Thanks in advance

Bijoy
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