hslogger is a logging framework for Haskell, roughly similar to Python’s logging module.
hslogger has a number of features:
hslogger is written by John Goerzen and was initially part of MissingH. It is licensed under the BSD3 license. If you like it, you can send a few dollars my way via my tip jar, though that is certainly optional and doesn’t buy you anything.
You can always download the source from the Downloads page and attach diffs. But it’s far better, both for you and for me, if you use Git.