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loglady - Crazy Simple Logging in Scala

"My log has something to tell you. Can you hear it?"

loglady is a thin wrapper around slf4j, providing a simple API similar to Python's logging module.

Using slf4j, you're free to choose whatever logging implementation suits your application or taste, but Logback seems like a good default.

The goal of the project is to be very simple, while adding as little overhead as possible.

Influences include logula and slf4s.

Main Features

  • Thin slf4j wrapper
  • Simple API
  • No configuration
  • Supports Scala 2.8.1, 2.8.2, 2.9.0-1 and 2.9.1

Usage Example

import org.eintr.loglady.Logging

class MyClass extends Logging {"Hello, Log Lady")

  log.warn("We all float (%.4f) down here", 3.141592)

  log.debug("Some random stuff: %d %s %x", 42, List(0, 1, 1, 2, 3, 5), -559038737)

  log.error("Formatted date: %1$tm %1$te,%1$tY", new java.util.Date)

  try {
    throw new Exception("Oops!")
  } catch {
    case exc: Exception => {
      log.error(exc, "Something bad happened")

To get logging output, you also need a concrete logging library with slf4j. Simply adding logback-classic as a dependency to your project is a simple way. See the logback website for more information.

Getting loglady

loglady is published to the Maven Central repository, requiring minimal configuration using either sbt or maven:


libraryDependencies += "org.eintr.loglady" %% "loglady" % "1.0.0"



Note: Replace the scala version to match that of your project.

API Documentation

Generated API docs (scaladoc) can be found at:

Bug Reports and Contributions

Please submit bug reports and feature requests using the Github issue tracker:

Patches and suggestions for improvements are very welcome.


Copyright (c) 2012 Daniel Lundin

This software is licensed under the Apache License, Version 2.0. Please see LICENSE for details.

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