{"id":10316,"library":"types-aiobotocore-ecs","title":"Type annotations for aiobotocore ECS","description":"types-aiobotocore-ecs provides comprehensive type annotations for the `aiobotocore` client for Amazon Elastic Container Service (ECS). It enhances developer experience by enabling static type checking with tools like MyPy, catching potential errors at compile time rather than runtime. This library is part of the `types-aiobotocore` family, which offers stubs for all AWS services, and is frequently updated to align with the latest `aiobotocore` and AWS API changes.","status":"active","version":"3.4.0","language":"en","source_language":"en","source_url":"https://github.com/youtype/mypy_boto3_builder","tags":["aiobotocore","aws","ecs","mypy","type-hints","stubs","cloud"],"install":[{"cmd":"pip install types-aiobotocore-ecs aiobotocore","lang":"bash","label":"Install library and peer dependency"}],"dependencies":[{"reason":"Provides the actual runtime AWS client; types-aiobotocore-ecs only provides type stubs.","package":"aiobotocore","optional":false},{"reason":"Required for backporting newer `typing` features on Python versions older than 3.9 (though types-aiobotocore-ecs now requires Python 3.9+).","package":"typing-extensions","optional":true}],"imports":[{"note":"The runtime client from `aiobotocore` will be `Any` without explicit type hinting with `types_aiobotocore_ecs.ECSClient`.","wrong":"from aiobotocore.client import Client","symbol":"ECSClient","correct":"from types_aiobotocore_ecs import ECSClient"},{"note":"While some TypeDefs might be directly accessible, it's safer and clearer to import them from the `type_defs` submodule.","wrong":"from types_aiobotocore_ecs import ListClustersResponseTypeDef","symbol":"ListClustersResponseTypeDef","correct":"from types_aiobotocore_ecs.type_defs import ListClustersResponseTypeDef"}],"quickstart":{"code":"import asyncio\nimport aiobotocore.session\nfrom types_aiobotocore_ecs import ECSClient, ListClustersResponseTypeDef\n\nasync def main():\n    session = aiobotocore.session.get_session()\n    # Replace 'us-east-1' with your desired AWS region\n    async with session.create_client(\"ecs\", region_name=\"us-east-1\") as client:\n        client: ECSClient # Type hint the client for MyPy\n\n        print(\"Listing ECS clusters...\")\n        # The response is type-hinted for static analysis\n        response: ListClustersResponseTypeDef = await client.list_clusters()\n        \n        cluster_arns = response.get(\"clusterArns\", [])\n        if cluster_arns:\n            print(f\"Found {len(cluster_arns)} clusters:\")\n            for arn in cluster_arns:\n                print(f\"- {arn}\")\n        else:\n            print(\"No ECS clusters found.\")\n\nif __name__ == \"__main__\":\n    asyncio.run(main())\n","lang":"python","description":"This quickstart demonstrates how to use `types-aiobotocore-ecs` to get a type-hinted ECS client. It initializes an `aiobotocore` session, creates an ECS client, and then calls `list_clusters` with full type safety, showing how to access the response attributes."},"warnings":[{"fix":"Upgrade your Python environment to 3.9 or higher.","message":"Support for Python 3.8 was removed in `mypy-boto3-builder` 8.12.0, which generates these type stubs. This library (types-aiobotocore-ecs 3.4.0) explicitly requires Python >=3.9.","severity":"breaking","affected_versions":">=3.4.0 (for types-aiobotocore-ecs) and builder >=8.12.0"},{"fix":"Review your explicit TypeDef imports and update their names according to the new convention (typically shorter, or 'Extra' moved to the end if applicable).","message":"TypeDef naming conventions changed significantly in `mypy-boto3-builder` 8.9.0. Explicitly imported TypeDefs (e.g., `CreateDistributionRequestRequestTypeDef` becoming `CreateDistributionRequestTypeDef`) might have different names.","severity":"breaking","affected_versions":"Builder >=8.9.0, impacting `types-aiobotocore-*` packages generated with it."},{"fix":"Ensure both `types-aiobotocore-ecs` and `aiobotocore` are installed (e.g., `pip install types-aiobotocore-ecs aiobotocore`).","message":"`types-aiobotocore-ecs` provides *only* type stubs. You must also install `aiobotocore` (and potentially `aiobotocore[boto3]` or `aioboto3`) for the actual runtime functionality.","severity":"gotcha","affected_versions":"All versions"},{"fix":"Keep `types-aiobotocore-ecs` and `aiobotocore` updated, or ensure their versions are compatible. The `types-aiobotocore-ecs` version (e.g., `3.4.0`) is typically derived from `aiobotocore`'s major.minor version (e.g., `2.13.0` -> `types-aiobotocore-2.13.0.post*`).","message":"For correct type checking, the version of `types-aiobotocore-ecs` should ideally match the major/minor version of your installed `aiobotocore` to ensure API compatibility. Mismatches can lead to incorrect type hints or missing attributes.","severity":"gotcha","affected_versions":"All versions"}],"env_vars":null,"last_verified":"2026-04-17T00:00:00.000Z","next_check":"2026-07-16T00:00:00.000Z","problems":[{"fix":"Run `pip install types-aiobotocore-ecs`.","cause":"The `types-aiobotocore-ecs` package is not installed in your environment.","error":"ModuleNotFoundError: No module named 'types_aiobotocore_ecs'"},{"fix":"Ensure `aiobotocore` and `types-aiobotocore-ecs` are up-to-date and compatible. Try `pip install --upgrade aiobotocore types-aiobotocore-ecs`.","cause":"The type stubs for `types-aiobotocore-ecs` are out of sync with the installed `aiobotocore` version, or the AWS API has changed and your stubs are too old.","error":"error: TypedDict \"ListClustersResponseTypeDef\" has no item \"clusterArns\""},{"fix":"After creating the client, add a type hint: `client = session.create_client(...)`; then `client: ECSClient`.","cause":"You are passing an `aiobotocore` client to a function that expects a type-hinted `ECSClient` from `types-aiobotocore-ecs`, but the client itself hasn't been explicitly type-hinted.","error":"error: Argument \"client\" to \"some_function\" has incompatible type \"Any\"; expected \"ECSClient\""},{"fix":"Ensure you are running Python 3.9 or newer, as `types-aiobotocore-ecs` requires it. If you need to support older Python, you might need to use `typing.List[str]` explicitly (though this library itself won't support <3.9).","cause":"This can occur on older Python versions (pre-3.9) when using type hints like `list[str]` which require `from __future__ import annotations` or `collections.abc` backports.","error":"TypeError: object is not subscriptable"}]}