======= logzero =======

.. image:: https://img.shields.io/pypi/v/logzero.svg :target: https://pypi.python.org/pypi/logzero :alt: Latest version on PyPi

.. image:: https://travis-ci.org/metachris/logzero.svg?branch=master :target: https://travis-ci.org/metachris/logzero :alt: Build status for master branch

.. image:: https://readthedocs.org/projects/logzero/badge/?version=latest :target: https://logzero.readthedocs.io/en/latest/?badge=latest :alt: Documentation Status

.. image:: https://pyup.io/repos/github/metachris/logzero/shield.svg :target: https://pyup.io/repos/github/metachris/logzero/ :alt: Updates

.. image:: https://anaconda.org/conda-forge/logzero/badges/version.svg :target: https://anaconda.org/conda-forge/logzero :alt: Anaconda-Server Badge

Robust and effective logging for Python 2 and 3.

.. image:: https://raw.githubusercontent.com/metachris/logzero/master/docs/_static/logo-small.png :alt: Logo :width: 300px


  • Easy logging to console and/or (rotating) file.
  • Provides a fully configured standard Python logger object <https://docs.python.org/2/library/logging.html#module-level-functions>_.
  • Pretty formatting, including level-specific colors in the console.
  • Windows color output supported by colorama_
  • Robust against str/bytes encoding problems, works with all kinds of character encodings and special characters.
  • Multiple loggers can write to the same logfile (also across multiple Python files).
  • Global default logger with logzero.logger <https://logzero.readthedocs.io/en/latest/#i-logzero-logger>_ and custom loggers with logzero.setup_logger(..) <https://logzero.readthedocs.io/en/latest/#i-logzero-setup-logger>_.
  • Compatible with Python 2 and 3.
  • All contained in a single file_.
  • Licensed under the MIT license.
  • Heavily inspired by the Tornado web framework_.

.. image:: https://raw.githubusercontent.com/metachris/logzero/master/docs/_static/demo_output.png :alt: Demo output in color :width: 300px

.. _single file: https://github.com/metachris/logzero/blob/master/logzero/__init__.py .. _Tornado web framework: https://github.com/tornadoweb/tornado .. _colorama: https://github.com/tartley/colorama

Example Usage

.. code-block:: python

from logzero import logger


# This is how you'd log an exception
    raise Exception("this is a demo exception")
except Exception as e:

Adding a rotating logfile is that easy:

.. code-block:: python

import logzero
from logzero import logger

# Setup rotating logfile with 3 rotations, each with a maximum filesize of 1MB:
logzero.logfile("/tmp/rotating-logfile.log", maxBytes=1e6, backupCount=3)

# Log messages
logger.info("This log message goes to the console and the logfile")

Here are more examples which show how to use logfiles, custom formatters and setting a minimum loglevel:

.. code-block:: python

import logging
import logzero
from logzero import logger

# This log message goes to the console

# Set a minimum log level

# Set a logfile (all future log messages are also saved there)

# You can also set a different loglevel for the file handler
logzero.logfile("/tmp/logfile.log", loglevel=logging.ERROR)

# Set a rotating logfile (replaces the previous logfile handler)
logzero.logfile("/tmp/rotating-logfile.log", maxBytes=1000000, backupCount=3)

# Disable logging to a file

# Set a custom formatter
formatter = logging.Formatter('%(name)s - %(asctime)-15s - %(levelname)s: %(message)s');

# Log some variables
logger.info("var1: %s, var2: %s", var1, var2)

Take a look at the documentation for more information and examples:


Install logzero with pip_:

.. code-block:: console

$ pip install -U logzero

If you don't have pip_ installed, this Python installation guide_ can guide you through the process.

Alternatively, if you use the Anaconda distribution <https://www.anaconda.com/download/>_:

.. code-block:: console

$ conda config --add channels conda-forge
$ conda install logzero

You can also install logzero from the public Github repo_:

.. code-block:: console

$ git clone https://github.com/metachris/logzero.git
$ cd logzero
$ python setup.py install

On openSUSE you can install the current version from repos: python2-logzero <https://software.opensuse.org/package/python2-logzero>, python3-logzero <https://software.opensuse.org/package/python3-logzero>. In the newest openSUSE release you can install it with zypper: sudo zypper in python2-logzero.

.. _pip: https://pip.pypa.io .. _Python installation guide: http://docs.python-guide.org/en/latest/starting/installation/ .. _Github repo: https://github.com/metachris/logzero


See the changelog here: https://github.com/metachris/logzero/blob/master/HISTORY.rst


All kinds of feedback and contributions are welcome.

  • Create an issue <https://github.com/metachris/logzero/issues/new>_
  • Create a pull request
  • @metachris <https://twitter.com/metachris>_ // chris@linuxuser.at


Robust and effective logging for Python 2 and 3.

Logzero Info

⭐ Stars 1016
🔗 Source Code github.com
🕒 Last Update 8 months ago
🕒 Created 5 years ago
🐞 Open Issues 24
➗ Star-Issue Ratio 42
😎 Author metachris