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Dependency injection framework designed with Python in mind.

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Picobox is opinionated dependency injection framework designed to be clean, pragmatic and with Python in mind. No complex graphs, no implicit injections, no type bindings – just picoboxes, and explicit demands!


Because we usually want to decouple our code and Python lack of clean and pragmatic solutions (even third parties).


  • Support both values and factories.
  • Support scopes (e.g. singleton, threadlocal).
  • Push boxes on stack, and use the top one to access values.
  • Thread-safe.
  • Lightweight ( ~141 LOC ).
  • Zero dependencies.
  • Pure Python.



$ [sudo] python -m pip install picobox

and then

import picobox
import requests

@picobox.pass_('requests', as_='session')
def get_resource(uri, session, conf):
    return session.get(conf['base_uri'] + uri)

box = picobox.Box()
box.put('conf', {'base_uri': ''})
box.put('requests', factory=requests.Session, scope=picobox.threadlocal)

with picobox.push(box):
    get_resource('/resource', requests.Session(), {})
    get_resource('/resource', requests.Session())

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Filename, size & hash SHA256 hash help File type Python version Upload date
picobox-2.0.0.tar.gz (25.1 kB) Copy SHA256 hash SHA256 Source None Mar 18, 2018

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