Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (
Help us improve Python packaging - Donate today!

Adding context to log records

Project Description

Python Logging Context

pylogctx is a library for enriching each logs records from a context. Typical usage is for adding some request_id to all logs in order to make troubleshooting more comfortable. This context is shared by all piece of code using logging, transparently.

import logging.config

from pylogctx import context as log_context

    'formatters': {'json': {
        '()': 'pythonjsonlogger.jsonlogger.JsonFormatter',
        'format': "%(asctime)s %(name)s %(levelname)s %(message)s",
    'filters': {'context': {
        '()': 'pylogctx.AddContextFilter',
    'handlers': {'console': {
        'class': 'logging.StreamHandler',
        'filters': ['context'],
        'formatter': 'json',
    'root': {
        'level': 'INFO',
        'handlers': ['console'],

logger = logging.getLogger(__name__)

def mycode(request, ticket_id):
    # push new fields
    myticket = get_object_or_404(models.Ticket, pk=ticket_id)

    # push objects, they will be adapted to log fields

    # Log as usual"Working on %r", myticket)

    for comment in myticket.comments:
        # A context manager allow to push and pop fields
        with log_context(comment):
  "Working on comment %r", comment)
            # code, use external libs, etc.

    # Don't forget to clear the context for the next request. Use the
    # middleware to have it clean.

The output looks like:

{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on <Ticket #1>', 'ticketId': 1, 'requestId': 'c5521138-031a-4da6-b9db-c9eda3e090f1'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on comment <Comment #4>', 'ticketId': 1, 'ticketCommentId': 4, 'requestId': 'c5521138-031a-4da6-b9db-c9eda3e090f1'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on comment <Comment #5>', 'ticketId': 1, 'ticketCommentId': 5, 'requestId': 'c5521138-031a-4da6-b9db-c9eda3e090f1'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on comment <Comment #78>', 'ticketId': 1, 'ticketCommentId': 78, 'requestId': 'c5521138-031a-4da6-b9db-c9eda3e090f1'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on comment <Comment #9>', 'ticketId': 1, 'ticketCommentId': 9, 'requestId': 'c5521138-031a-4da6-b9db-c9eda3e090f1'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on <Ticket #890>', 'ticketId': 890, 'requestId': 'c64aaae7-049b-4a02-929b-2d0ac9141f5c'}
{'loggerName': 'package.module', 'levelname': 'INFO', 'message': 'Working on comment <Comment #80>', 'ticketId': 890, 'ticketCommentId': 80, 'requestId': 'c64aaae7-049b-4a02-929b-2d0ac9141f5c'}

Install it with your favorite python package installer:

$ pip install pylogctx

There is a few helpers for Celery and Django projects. See USAGE for details!


Do you want py3 support or other nice improvements ? Join us to make log rocking better!

Release History

Release History

This version
History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


Download Files

Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pylogctx-1.7-py2.py3-none-any.whl (8.8 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Jan 17, 2018
pylogctx-1.7.tar.gz (7.0 kB) Copy SHA256 Checksum SHA256 Source Jan 17, 2018

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting