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aiodi is a modern Python Dependency Injection library that allows you to standardize and centralize the way objects are constructed in your application highly inspired on PHP Symfony's DependencyInjection Component.
Key Features:
Use the package manager pip to install aiodi.
pip install aiodi
# sample/pyproject.toml
[tool.aiodi.variables]
name = "%env(str:APP_NAME, 'sample')%"
version = "%env(int:APP_VERSION, '1')%"
log_level = "%env(APP_LEVEL, 'INFO')%"
debug = "%env(bool:int:APP_DEBUG, '0')%"
text = "Hello World"
[tool.aiodi.services."_defaults"]
project_dir = "../../.."
[tool.aiodi.services."logging.Logger"]
class = "sample.libs.utils.get_simple_logger"
arguments = { name = "%var(name)%", level = "%var(log_level)%" }
[tool.aiodi.services."UserLogger"]
type = "sample.libs.users.infrastructure.in_memory_user_logger.InMemoryUserLogger"
arguments = { commands = "@logging.Logger" }
[tool.aiodi.services."*"]
_defaults = { autoregistration = { resource = "sample/libs/*", exclude = "sample/libs/users/{domain,infrastructure/in_memory_user_logger.py,infrastructure/*command.py}" } }
# sample/apps/settings.py
from typing import Optional
from aiodi import Container, ContainerBuilder
def container(filename: str, cwd: Optional[str] = None) -> Container:
return ContainerBuilder(filenames=[filename], cwd=cwd).load()
# sample/apps/cli/main.py
from sample.apps.settings import container
from logging import Logger
def main() -> None:
di = container(filename='../../pyproject.toml')
di.get(Logger).info('Just simple call get with the type')
di.get('UserLogger').logger().info('Just simple call get with the service name')
from abc import ABC, abstractmethod
from logging import Logger, getLogger, NOTSET, StreamHandler, Formatter
from os import getenv
from aiodi import Container
from typing import Optional, Union
_CONTAINER: Optional[Container] = None
def get_simple_logger(
name: Optional[str] = None,
level: Union[str, int] = NOTSET,
fmt: str = '[%(asctime)s] - %(name)s - %(levelname)s - %(message)s',
) -> Logger:
logger = getLogger(name)
logger.setLevel(level)
handler = StreamHandler()
handler.setLevel(level)
formatter = Formatter(fmt)
handler.setFormatter(formatter)
logger.addHandler(handler)
return logger
class GreetTo(ABC):
@abstractmethod
def __call__(self, who: str) -> None:
pass
class GreetToWithPrint(GreetTo):
def __call__(self, who: str) -> None:
print('Hello ' + who)
class GreetToWithLogger(GreetTo):
_logger: Logger
def __init__(self, logger: Logger) -> None:
self._logger = logger
def __call__(self, who: str) -> None:
self._logger.info('Hello ' + who)
def container() -> Container:
global _CONTAINER
if _CONTAINER:
return _CONTAINER
di = Container({'env': {
'name': getenv('APP_NAME', 'aiodi'),
'log_level': getenv('APP_LEVEL', 'INFO'),
}})
di.resolve([
(
Logger,
get_simple_logger,
{
'name': di.resolve_parameter(lambda di_: di_.get('env.name', typ=str)),
'level': di.resolve_parameter(lambda di_: di_.get('env.log_level', typ=str)),
},
),
(GreetTo, GreetToWithLogger), # -> (GreetTo, GreetToWithLogger, {})
GreetToWithPrint, # -> (GreetToWithPrint, GreetToWithPrint, {})
])
di.set('who', 'World!')
# ...
_CONTAINER = di
return di
def main() -> None:
di = container()
di.get(Logger).info('Just simple call get with the type')
for greet_to in di.get(GreetTo, instance_of=True):
greet_to(di.get('who'))
if __name__ == '__main__':
main()
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.
FAQs
Container for the Dependency Injection in Python.
We found that aiodi demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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