mypy-boto3-application-autoscaling Type Stubs

1.42.3 · active · verified Sat Apr 11

This library provides type annotations (stubs) for the `boto3` client for the AWS Application Auto Scaling service. It enables static type checking with tools like Mypy, improving code reliability and developer experience when working with AWS SDK for Python. The current version is 1.42.3, and releases typically follow the `boto3` release cycle, with new stub packages generated for each new `boto3` version.

Warnings

breaking Python 3.8 support has been removed. All `mypy-boto3` packages, including `mypy-boto3-application-autoscaling`, now require Python 3.9 or newer.
Fix: Upgrade your Python environment to 3.9 or newer. If you must use Python 3.8, pin `mypy-boto3-application-autoscaling` to a version older than 1.42.3 (e.g., `mypy-boto3-application-autoscaling<1.42.3`).
breaking The `mypy-boto3-builder` migrated to PEP 561 compliant packages. While this generally improves compatibility with type checkers, it might affect custom build processes or tools that rely on the old package structure.
Fix: Ensure your `mypy` and other type-checking tools are up-to-date. If you encounter issues, review `mypy` documentation on PEP 561 compliance and package discovery.
gotcha The version of `mypy-boto3-application-autoscaling` should ideally match your `boto3` runtime version to ensure accurate type hints. Mismatched versions can lead to `mypy` errors or incorrect type inferences.
Fix: Always install `mypy-boto3-application-autoscaling` with the same major.minor.patch version as your `boto3` installation (e.g., if `boto3==1.42.3`, install `mypy-boto3-application-autoscaling==1.42.3`).
breaking In `mypy-boto3-builder` 8.9.0, TypeDef names for packed method arguments were shortened (e.g., `CreateDistributionRequestRequestTypeDef` became `CreateDistributionRequestTypeDef`). If you were directly importing these longer names, they will no longer exist.
Fix: Update your code to use the shorter TypeDef names. Consult the specific service's `mypy-boto3` documentation or generated files for the correct names.

Install

pip install mypy-boto3-application-autoscaling boto3 mypy Install with dependencies

Imports

ApplicationAutoScalingClient

from mypy_boto3_application_autoscaling import ApplicationAutoScalingClient

DescribeScalableTargetsResponseTypeDef

from mypy_boto3_application_autoscaling.type_defs import DescribeScalableTargetsResponseTypeDef

For specific response or request type definitions.

Quickstart

This quickstart demonstrates how to type-annotate a `boto3` Application Auto Scaling client using `mypy-boto3-application-autoscaling` stubs. It also shows how to use specific `TypeDef` for API response objects, enabling Mypy to validate attribute access and types.

import boto3
from mypy_boto3_application_autoscaling import ApplicationAutoScalingClient
from mypy_boto3_application_autoscaling.type_defs import DescribeScalableTargetsResponseTypeDef

def list_scalable_targets() -> None:
    # Using type hint for the boto3 client
    client: ApplicationAutoScalingClient = boto3.client('application-autoscaling')

    # Example API call
    response: DescribeScalableTargetsResponseTypeDef = client.describe_scalable_targets(
        ServiceNamespace='ec2'
    )

    print(f"Scalable targets found: {len(response['ScalableTargets'])}")
    for target in response['ScalableTargets']:
        print(f"- Resource ID: {target['ResourceId']}, Dimension: {target['ScalableDimension']}")

# To run type checking:
# 1. Save this as a Python file (e.g., `main.py`)
# 2. Run `mypy main.py` in your terminal

# To execute the code (requires AWS credentials configured):
# list_scalable_targets()

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