"Modern-DI"
==
| Project | Badges |
|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| common | [](https://mypy.readthedocs.io/en/stable/getting_started.html#strict-mode-and-configuration) [](https://github.com/modern-python/modern-di/stargazers) |
| modern-di | [](https://pypi.python.org/pypi/modern-di ) [](https://pypistats.org/packages/modern-di) |
| modern-di-fastapi | [](https://pypi.python.org/pypi/modern-di-fastapi) [](https://pypistats.org/packages/modern-di-fastapi) |
| modern-di-litestar | [](https://pypi.python.org/pypi/modern-di-litestar) [](https://pypistats.org/packages/modern-di-litestar) |
Dependency injection framework for Python inspired by `dependency-injector` and `dishka`.
It is in development state yet and gives you the following:
- DI framework with IOC-container and scopes.
- Async and sync resolving.
- Python 3.10-3.13 support.
- Full coverage by types annotations (mypy in strict mode).
- Overriding dependencies for tests.
- Package with zero dependencies.
- Integration with FastAPI and LiteStar
📚 [Documentation](https://modern-di.readthedocs.io)
## Describe resources and classes:
```python
import dataclasses
import logging
import typing
logger = logging.getLogger(__name__)
# singleton provider with finalization
def create_sync_resource() -> typing.Iterator[str]:
logger.debug("Resource initiated")
try:
yield "sync resource"
finally:
logger.debug("Resource destructed")
# same, but async
async def create_async_resource() -> typing.AsyncIterator[str]:
logger.debug("Async resource initiated")
try:
yield "async resource"
finally:
logger.debug("Async resource destructed")
@dataclasses.dataclass(kw_only=True, slots=True)
class DependentFactory:
sync_resource: str
async_resource: str
```
## Describe dependencies graph (IoC-container)
```python
from modern_di import BaseGraph, Scope, providers
class Dependencies(BaseGraph):
sync_resource = providers.Resource(Scope.APP, create_sync_resource)
async_resource = providers.Resource(Scope.APP, create_async_resource)
simple_factory = providers.Factory(Scope.REQUEST, SimpleFactory, dep1="text", dep2=123)
dependent_factory = providers.Factory(
Scope.REQUEST,
sync_resource=sync_resource,
async_resource=async_resource,
)
```
## Create container and resolve dependencies in your code
```python
from modern_di import Container, Scope
# init container of app scope in sync mode
with Container(scope=Scope.APP) as app_container:
# resolve sync resource
Dependencies.sync_resource.sync_resolve(app_container)
# init container of app scope in async mode
async with Container(scope=Scope.APP) as app_container:
# resolve async resource
await Dependencies.async_resource.async_resolve(app_container)
# resolve sync resource
instance1 = await Dependencies.sync_resource.async_resolve(app_container)
instance2 = Dependencies.sync_resource.sync_resolve(app_container)
assert instance1 is instance2
# create container of request scope
async with app_container.build_child_container(scope=Scope.REQUEST) as request_container:
# resolve factories of request scope
Dependencies.simple_factory.sync_resolve(request_container)
await Dependencies.dependent_factory.async_resolve(request_container)
# resources of app-scope also can be resolved here
```
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"description": "\"Modern-DI\"\n==\n\n| Project | Badges |\n|--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| common | [](https://mypy.readthedocs.io/en/stable/getting_started.html#strict-mode-and-configuration) [](https://github.com/modern-python/modern-di/stargazers) |\n| modern-di | [](https://pypi.python.org/pypi/modern-di ) [](https://pypistats.org/packages/modern-di) |\n| modern-di-fastapi | [](https://pypi.python.org/pypi/modern-di-fastapi) [](https://pypistats.org/packages/modern-di-fastapi) |\n| modern-di-litestar | [](https://pypi.python.org/pypi/modern-di-litestar) [](https://pypistats.org/packages/modern-di-litestar) |\n\nDependency injection framework for Python inspired by `dependency-injector` and `dishka`.\n\nIt is in development state yet and gives you the following:\n- DI framework with IOC-container and scopes.\n- Async and sync resolving.\n- Python 3.10-3.13 support.\n- Full coverage by types annotations (mypy in strict mode).\n- Overriding dependencies for tests.\n- Package with zero dependencies.\n- Integration with FastAPI and LiteStar\n\n\ud83d\udcda [Documentation](https://modern-di.readthedocs.io)\n\n## Describe resources and classes:\n```python\nimport dataclasses\nimport logging\nimport typing\n\n\nlogger = logging.getLogger(__name__)\n\n\n# singleton provider with finalization\ndef create_sync_resource() -> typing.Iterator[str]:\n logger.debug(\"Resource initiated\")\n try:\n yield \"sync resource\"\n finally:\n logger.debug(\"Resource destructed\")\n\n\n# same, but async\nasync def create_async_resource() -> typing.AsyncIterator[str]:\n logger.debug(\"Async resource initiated\")\n try:\n yield \"async resource\"\n finally:\n logger.debug(\"Async resource destructed\")\n\n\n@dataclasses.dataclass(kw_only=True, slots=True)\nclass DependentFactory:\n sync_resource: str\n async_resource: str\n```\n\n## Describe dependencies graph (IoC-container)\n```python\nfrom modern_di import BaseGraph, Scope, providers\n\n\nclass Dependencies(BaseGraph):\n sync_resource = providers.Resource(Scope.APP, create_sync_resource)\n async_resource = providers.Resource(Scope.APP, create_async_resource)\n\n simple_factory = providers.Factory(Scope.REQUEST, SimpleFactory, dep1=\"text\", dep2=123)\n dependent_factory = providers.Factory(\n Scope.REQUEST,\n sync_resource=sync_resource,\n async_resource=async_resource,\n )\n```\n\n## Create container and resolve dependencies in your code\n```python\nfrom modern_di import Container, Scope\n\n\n# init container of app scope in sync mode\nwith Container(scope=Scope.APP) as app_container:\n # resolve sync resource\n Dependencies.sync_resource.sync_resolve(app_container)\n\n\n# init container of app scope in async mode\nasync with Container(scope=Scope.APP) as app_container:\n # resolve async resource\n await Dependencies.async_resource.async_resolve(app_container)\n\n # resolve sync resource\n instance1 = await Dependencies.sync_resource.async_resolve(app_container)\n instance2 = Dependencies.sync_resource.sync_resolve(app_container)\n assert instance1 is instance2\n\n # create container of request scope\n async with app_container.build_child_container(scope=Scope.REQUEST) as request_container:\n # resolve factories of request scope\n Dependencies.simple_factory.sync_resolve(request_container)\n await Dependencies.dependent_factory.async_resolve(request_container)\n \n # resources of app-scope also can be resolved here\n\n```\n",
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