Can't seem to insert rows into a MySQL table

[grumfish]

I'm trying to add a row to a MySQL table using insert. Here is the code:

connection = MySQLdb.connect(host="localhost", user="root", passwd="pw", 
db="japanese")
cursor = connection.cursor()
cursor.execute("INSERT INTO edict (kanji, kana, meaning) VALUES (%s, %s, 
%s)", ("a", "b", "c") )
connection.close()

After running, a SELECT * on the table shows no new rows added. Adding 
rows using the MySQL client works fine. With the Python script, nothing. 
There are no exceptions raised or any output at all. The rowcount of the 
cursor is 1 after the execute is 1 and the table's auto_increment value 
is increased for each insert done. Can anybody help? I'm fairly new to 
MySQL so I'm afraid its going to be a stupid oversight on my part. Thank 
you.