Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

Singleton Pattern In Python

DZone's Guide to

Singleton Pattern In Python

·
Free Resource

class Borg:
    __shared_state = {}
    def __init__(self):
        self.__dict__ = self.__shared_state

What a pythonic way to use Singleton. It uses shared-state
approach where you can actually have many instances as you want
but they all share the same state. See Alex's recipe.

>>> b = Borg()
>>> b.x = 1
>>> c = Borg()
>>> c.x
1
Topics:

Opinions expressed by DZone contributors are their own.

THE DZONE NEWSLETTER

Dev Resources & Solutions Straight to Your Inbox

Thanks for subscribing!

Awesome! Check your inbox to verify your email so you can start receiving the latest in tech news and resources.

X

{{ parent.title || parent.header.title}}

{{ parent.tldr }}

{{ parent.urlSource.name }}