Pymysql Insert Into not working

I'm running this from PyDev in Eclipse...

import pymysql
conn = pymysql.connect(host='localhost', port=3306, user='userid', passwd='password', db='fan')
cur = conn.cursor()
print "writing to db"
cur.execute("INSERT INTO cbs_transactions(leagueID) VALUES ('test val')")
print "wrote to db"

The result is, at the top of the Console it says C:...test.py, and in the Console:

writing to db wrote to db

So it's not terminating until after the execute command. But when I look in the table in MySQL it's empty. A record did not get inserted.

First off, why isn't it writing the record. Second, how can I see a log or error to see what happened. Usually there should be some kind of error in red if the code fails.

Did you commit it? conn.commit()

PyMySQL disable autocommit by default, you can add autocommit=True to connect():

conn = pymysql.connect(
    host='localhost',
    user='user',
    passwd='passwd',
    db='db',
    autocommit=True
)

or call conn.commit() after insert

You can either do

• conn.commit() before calling close

or

• enable autocommit via conn.autocommit(True) right after creating the connection object.

Both ways have been suggested from various people at a duplication of the question that can be found here: https://stackoverflow.com/questions/384228/database-does-not-update-automatically-with-mysql-and-python