injectable

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Injectable is an elegant and simple Dependency Injection framework built with Heart and designed for Humans.

from typing import Annotated, List
from injectable import Autowired, autowired
from models import Database
from messaging import Broker

class Service:
    @autowired
    def __init__(
        self,
        database: Annotated[Database, Autowired],
        message_brokers: Annotated[List[Broker], Autowired],
    ):
        pending = database.get_pending_messages()
        for broker in message_brokers:
            broker.send_pending(pending)

from abc import ABC

class Broker(ABC):
    def send_pending(messages):
        ...

from injectable import injectable

@injectable
class Database:
    ...

from messaging import Broker
from injectable import injectable

@injectable
class KafkaProducer(Broker):
    ...

from messaging import Broker
from injectable import injectable

@injectable
class SQSProducer(Broker):
    ...

Features you’ll love ❤️

Autowiring: injection is transparent to the function. Just decorate the function with @autowired and annotate parameters with Autowired, that’s it.
Automatic dependency discovery: just call load_injection_container() at the root of your project or pass the root path as an argument. All classes decorated with @injectable will be automatically discovered and ready for injection.
Qualifier overloading: declare as many injectables as you like for a single qualifier or extending the same base class. You can inject all of them just by specifying a typing.List to Autowired: deps: Annotated[List["qualifier"], Autowired].
Transparent lazy initialization: passing the argument lazy=True for Autowired will make your dependency to be initialized only when actually used, all in a transparent fashion.
Singletons: decorate your class with @injectable(singleton=True) and only a single instance will be initialized and shared for injection.
Namespaces: specify different namespaces for injectables as in @injectable(namespace="foo") and then just use them when annotating your parameters as in dep: Annotated[..., Autowired(namespace="foo")].
Linters friendly: Autowired is carefully designed to comply with static linter analysis such as PyCharm’s to preserve the parameter original type hint.

These are just a few cool and carefully built features for you. Check out our docs!

Release files for injectable 4.0.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for injectable 4.0.1
File	Size	Uploaded
injectable-4.0.1.tar.gz	31.1 kB	Aug 5, 2024	Details

Built distribution (wheel)

Table of built distributions (wheels) for injectable 4.0.1
File	Interpreter	ABI	Platform	Reset
injectable-4.0.1-py3-none-any.whl 23.5 kB Aug 5, 2024	Python 3	none	any	Details

Total release size: 54.6 kB

Release files / injectable-4.0.1.tar.gz

Download URL	injectable-4.0.1.tar.gz
Size	31.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`1f5b269d5560a8c34d1d7fdc5064acbb96e3a11ee79fe3cc7ea98dbfa35309dc`
BLAKE2b-256 checksum How to use checksums	`2c8b53e3ff8255d4dc8efa7db135e51152575247cb3f54e8e38aaeba38621eec`
Upload date	Aug 5, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/5.1.0 CPython/3.12.4`

Release files / injectable-4.0.1-py3-none-any.whl

Download URL	injectable-4.0.1-py3-none-any.whl
Size	23.5 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`42f5879b78383c22127510ab7ff468651cae1f4cee1fae64aadccb1793658bec`
BLAKE2b-256 checksum How to use checksums	`afb571150cbc179fcc2ca4e1bfcfd5ce583c9e3f27a2db1cc1a423484cb4c0bc`
Upload date	Aug 5, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/5.1.0 CPython/3.12.4`