InformixDB

Thanks for the feedback. I will make the adjustments.

Python's DB-API specs dictate that connections operate in a transaction by
default. You need to explicitly commit the change by calling conn.commit(),
or open the connection in autocommit mode. You're doing neither, so the
update is implicitly rolled back when the script exits.

By the way, you're not closing the cursor. "cur.close" just looks up the
close method without calling it. You need "cur.close()" to call the method.
Also, the second "cur.close" should probably be "conn.close()".

Lastly, plugging variables into a query by string concatenation is really
bad style. Use parameter passing instead. See
http://informixdb.blogspot.com/2007/07/filling-in-blanks.html for details.