python connect to db2

[yuzx]

hi,all

	i am python newbie,i try to connect to db2 use python,i find it on
python-db2 doc:

	$ python
	>>> import DB2
	>>> conn = DB2.connect(dsn='sample', uid='db2inst1', pwd='ibmdb2')
	>>> curs = conn.cursor()

but i don't know about dsn,

i think a way like python connect to mysql :

db=_mysql.connect("localhost","joebob","moonpie","thangs")

anyone can help me ?

thank you