cutelog 2.2.0

GUI for Python's logging module

Table of contents

• cutelog

  • Features

  • Installation

  • Usage

  • Code, issues, changelog

cutelog

This is a graphical log viewer for Python’s standard logging module. It can be targeted with a SocketHandler with no additional setup (see Usage). cutelog is cross-platform, although it’s mainly written and optimized for Linux.

Features

• Allows any number of simultaneous connections

• Customizable look of log levels and columns, with presets for each

• Filtering based on level and namespace, as well as filtering by searching

• Search through all records or only through filtered ones

• Display extra fields under the message with Extra mode

• View exception tracebacks or messages in a separate window

• Dark theme (with its own set of colors for levels)

• Pop tabs out of the window, merge records of multiple tabs into one

• Save/load records to/from a file in JSON format

Installation

If you’re using Linux, install PyQt5 (or PySide2) from your package manager before installing cutelog (package name is probably python3-pyqt5 or python-pyqt5). Or just run pip install pyqt5 to install it from pip, which is sub-optimal.

$ pip install --upgrade cutelog

Or install the latest development version from the source:

$ pip install git+https://github.com/busimus/cutelog.git

Requirements

• Python 3.5 (or newer)

• PyQt5 (preferably 5.6 or newer) or PySide2

• QtPy

Usage

1. Start cutelog

2. Put the following into your code:

import logging
from logging.handlers import SocketHandler

log = logging.getLogger('Root logger')
log.setLevel(1)  # to send all messages to cutelog
socket_handler = SocketHandler('127.0.0.1', 19996)  # default listening address
log.addHandler(socket_handler)
log.info('Hello world!')

Afterwards it’s recommended to designate different loggers for different parts of your program with log_2 = log.getChild(“Child logger”). This will create “log namespaces” which allow you to filter out messages from various subsystems of your program.

Code, issues, changelog

Visit the project’s GitHub page.