How do I use parameterized queries with LIKE?

This works just fine:

    cursor.execute("""select email_address from customer where
email_address like '%matt%'""")

But when I move the "matt" part out and use a %s symbol instead, I get
this error:

    ValueError: unsupported format character ''' (0x27) at index 73

What is the right solution here?

Thanks for the help.

Matt

--
W. Matthew Wilson
matt@tplus1.com
http://tplus1.com