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!

Python partial on steroids

Project Description

Python partial on steroids

Like python functools.partial but with change/extend access to args and kwargs. Also a great tool even if no partial is needed but the function takes args/kwargs that often depends on logic.

Easiest used as a decorator

from partialize import partialize

def dummy(a, b, c=None):
    return 'hello world'

partial_dummy = dummy.partial(1)
partial_dummy.b = 2

or invoked inline…

partial_dummy = partialize(dummy)
partial_dummy.a = 1

Use it on functions that needs logic to affect arguments passed, instead of building and passing a dict as kwargs which often gets quite messy and hard to read.

Dict kwargs example:

from partialize import partialize

def search_products(site, query=None, brand=None, tags=None):

kwargs = {}

if logic:
    kwargs['query'] = q

if more_logic:
    kwargs['brand'] = 'brand name'

products = search_products(site, **kwargs)

Partialize example:

search = search_products.partial(site)

if logic:
    search.query = q

if more_logic:
    search.brand = 'brand name'

products = search()
Note: function argument names are validated when set, unlike dict string keys.

Release History

This version
History Node


Download Files

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

Filename, Size & Hash SHA256 Hash Help File Type Python Version Upload Date
(4.7 kB) Copy SHA256 Hash SHA256
Source None May 14, 2013

Supported By

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 Google Google Cloud Servers DreamHost DreamHost Log Hosting