{"id":3019,"library":"mypy-boto3-application-insights","title":"mypy-boto3-application-insights Type Stubs","description":"mypy-boto3-application-insights provides comprehensive type annotations for the `boto3` client interacting with the AWS Application Insights service. It ensures that your Python code leveraging `boto3` for Application Insights interactions is type-checked by `mypy`, catching potential errors at development time. This package is part of the `mypy-boto3-builder` ecosystem, which generates stubs for all `boto3` services, and is frequently updated to align with `boto3` and `botocore` releases. The current version is 1.42.3.","status":"active","version":"1.42.3","language":"en","source_language":"en","source_url":"https://github.com/youtype/mypy_boto3_builder","tags":["boto3","mypy","type-hints","aws","application-insights","stubs","types"],"install":[{"cmd":"pip install boto3 mypy-boto3-application-insights","lang":"bash","label":"Install package and boto3 runtime"}],"dependencies":[],"imports":[{"note":"Old package naming convention (types-boto3-*) is deprecated in favor of mypy-boto3-*.","wrong":"from types_boto3_application_insights import ApplicationInsightsClient","symbol":"ApplicationInsightsClient","correct":"from mypy_boto3_application_insights import ApplicationInsightsClient"},{"note":"This explicit import from 'client' module is also correct and often used under TYPE_CHECKING.","symbol":"ApplicationInsightsClient","correct":"from mypy_boto3_application_insights.client import ApplicationInsightsClient"},{"note":"TypeDefs for request/response structures are located in the 'type_defs' submodule.","symbol":"ListApplicationsOutputTypeDef","correct":"from mypy_boto3_application_insights.type_defs import ListApplicationsOutputTypeDef"}],"quickstart":{"code":"import boto3\nimport os\nfrom typing import TYPE_CHECKING\n\n# Ensure boto3 and mypy-boto3-application-insights are installed:\n# pip install boto3 mypy-boto3-application-insights\n\nif TYPE_CHECKING:\n    # These imports are only for type checking and will not be executed at runtime.\n    from mypy_boto3_application_insights import ApplicationInsightsClient\n    from mypy_boto3_application_insights.type_defs import (\n        ListApplicationsOutputTypeDef,\n        ApplicationTypeDef,\n    )\n\n# Instantiate a boto3 client. \n# mypy-boto3 provides the type hints for this client.\nclient: \"ApplicationInsightsClient\" = boto3.client(\n    \"application-insights\",\n    region_name=os.environ.get(\"AWS_REGION\", \"us-east-1\"),\n    # The following are placeholder values for demonstration; use actual credentials.\n    aws_access_key_id=os.environ.get(\"AWS_ACCESS_KEY_ID\", \"MOCK_KEY\"), \n    aws_secret_access_key=os.environ.get(\"AWS_SECRET_ACCESS_KEY\", \"MOCK_SECRET\"),\n    aws_session_token=os.environ.get(\"AWS_SESSION_TOKEN\", \"MOCK_TOKEN\")\n)\n\nprint(f\"Boto3 client instantiated (runtime type: {type(client)}).\")\n\n# Example usage with type-checked response and error handling\ntry:\n    # The response variable will be type-hinted as ListApplicationsOutputTypeDef\n    response: \"ListApplicationsOutputTypeDef\" = client.list_applications()\n    \n    # Access type-hinted data from the response\n    applications: list[\"ApplicationTypeDef\"] = response.get(\"ApplicationInfoList\", [])\n    \n    print(f\"Found {len(applications)} Application Insights applications.\")\n    if applications:\n        print(f\"First application name: {applications[0]['ApplicationName']}\")\n\nexcept client.exceptions.ResourceNotFoundException:\n    print(\"No Application Insights applications found or insufficient permissions.\")\nexcept Exception as e:\n    print(f\"An unexpected error occurred: {e}\")","lang":"python","description":"This quickstart demonstrates how to set up and use `mypy-boto3-application-insights` to get type hints for your `boto3` Application Insights client. It includes conditional imports (`if TYPE_CHECKING:`) for optimal runtime performance and illustrates basic client instantiation and interaction with type-checked responses. Remember to have `boto3` installed for runtime execution."},"warnings":[{"fix":"Upgrade your Python environment to 3.9 or newer.","message":"Python 3.8 is no longer supported. Packages generated with `mypy-boto3-builder` version 8.12.0 and later, including `mypy-boto3-application-insights` 1.42.3+, require Python 3.9 or higher.","severity":"breaking","affected_versions":"1.42.0+"},{"fix":"Review and update your `TypeDef` imports and usage if upgrading from older `mypy-boto3` packages. Consult the `mypy-boto3-builder` changelog for specific naming changes.","message":"TypeDef naming conventions changed in `mypy-boto3-builder` version 8.9.0. This could affect existing type hint usages for service-specific request/response types (e.g., `CreateDistributionRequestRequestTypeDef` was shortened to `CreateDistributionRequestTypeDef`).","severity":"breaking","affected_versions":"1.30.0+"},{"fix":"Ensure `boto3` (or `aioboto3`) is included in your project's runtime dependencies, e.g., `pip install boto3 mypy-boto3-application-insights`.","message":"This package provides type stubs only. You must also install `boto3` (or `aioboto3`) separately for runtime functionality, as the stub package does not include it as a runtime dependency.","severity":"gotcha","affected_versions":"all"},{"fix":"Wrap `from mypy_boto3_... import ...` statements within an `if typing.TYPE_CHECKING:` block.","message":"For optimal runtime performance and to avoid loading stubs in production, it is recommended to guard `mypy-boto3` imports with `if typing.TYPE_CHECKING:`.","severity":"gotcha","affected_versions":"all"}],"env_vars":null,"last_verified":"2026-04-11T00:00:00.000Z","next_check":"2026-07-10T00:00:00.000Z"}