lighter weight options to Python's logging package?

[skip at pobox.com]

We use the standard logging package and frequently bump into performance
issues with it (we log a lot of information).  When that happens, we then go
through our code and dump a bunch of logging calls we think we can live
without.  This invariably causes problems because we get overzealous and
delete something we needed and are then unable to do some bit of post-mortem
debugging until we add back in the missing logging and cut another release.

Before I consider writing something from scratch, is there something lighter
weight "floating around" out there already?

Thanks,

Skip