picobox · Python Simple Repository Browser

Project Links

Meta

Author: Ihor Kalnytskyi

Requires Python: >=3.8

Classifiers

Intended Audience

Developers

License

OSI Approved :: MIT License

Operating System

OS Independent

Programming Language

Python
Python :: 3
Python :: 3.8
Python :: 3.9
Python :: 3.10
Python :: 3.11
Python :: 3.12
Python :: Implementation :: CPython
Python :: Implementation :: PyPy

Topic

Software Development :: Libraries

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!

Why?

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

Features

Support both values and factories.
Support scopes (e.g. singleton, threadlocal, contextvars).
Push boxes on stack, and use the top one to access values.
Thread-safe.
Lightweight (~500 LOC including scopes).
Zero dependencies.
Pure Python.
Annotated with types.

Quickstart

First

$ [sudo] python -m pip install picobox

and then

import picobox
import requests


@picobox.pass_("conf")
@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": "http://example.com"})
box.put("requests", factory=requests.Session, scope=picobox.threadlocal)

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