How to Install `loguru` in Python

v0.7.3 CLI & Utilities Python <4.0,>=3.5

Python logging made (stupidly) simple

Install pip install loguru

What is loguru?

Python logging made (stupidly) simple

Loguru is a library which aims to bring enjoyable logging in Python.

Did you ever feel lazy about configuring a logger and used instead?... I did, yet logging is fundamental to every application and eases the process of debugging. Using Loguru you have no excuse not to use logging from the start, this is as simple as .

Also, this library is intended to make Python logging less painful by adding a bunch of useful functionalities that solve caveats of the standard loggers. Using logs in your application should be an automatism, Loguru tries to make it both pleasant and powerful.

PyPI page → Author: Delgan <delgan.py@gmail.com>

Quick Start

Minimal example to get started with loguru:

from loguru import logger

logger.info("Starting application")
logger.warning("Something looks odd")
logger.error("Something went wrong")

# Log to a rotating file
logger.add("app.log", rotation="10 MB")
logger.info("This also writes to app.log")

Installation

pip (standard)

pip install loguru

Virtual environment (recommended)

python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install loguru

pip3

pip3 install loguru

conda

conda install -c conda-forge loguru

Poetry

poetry add loguru

Dependencies

Installing loguru will also install these packages:

colorama aiocontextvars win32-setctime

Verify the Installation

After installing, confirm the package is available:

python -c "import loguru; print(loguru.__version__)"

If this prints a version number, installation succeeded. If you see a ModuleNotFoundError, see the errors section below.

Installation Errors

Common errors when installing loguru with pip.

ModuleNotFoundError: No module named 'loguru'

Cause: The package is not installed in the current Python environment.

Fix: Run pip install loguru. If using a virtual environment, ensure it is activated first.

ModuleNotFoundError: No module named 'loguru' (installed but still failing)

Cause: pip installed the package into a different Python than the one running your script.

Fix: Use python -m pip install loguru to install into the interpreter you are running.

ImportError: cannot import name 'X' from 'loguru'

Cause: The function or class does not exist in the installed version.

Fix: Check the version with pip show loguru and upgrade with pip install --upgrade loguru.

pip: command not found

Cause: pip is not in PATH or Python was not added to PATH during installation.

Fix: Try python -m pip install loguru. On macOS/Linux try pip3.

PermissionError: [Errno 13] Permission denied

Cause: No write access to the system Python package directory.

Fix: Use a virtual environment, or add --user: pip install --user loguru

SSL: CERTIFICATE_VERIFY_FAILED

Cause: pip cannot verify PyPI's SSL certificate — common behind corporate proxies.

Fix: Try: pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org loguru

Recent Releases

Version	Released
`0.7.3` latest	2024-12-06
`0.7.2`	2023-09-11
`0.7.1`	2023-09-04
`0.7.0`	2023-04-10
`0.6.0`	2022-01-29

Full release history on PyPI →

Manage loguru

Upgrade to latest version

pip install --upgrade loguru

Install a specific version

pip install loguru==0.7.3

Uninstall

pip uninstall loguru

Check what is installed

pip show loguru

Last updated: 2026-04-11 • Data from PyPI

How to Install loguru in Python