{"id":3631,"library":"mypy-boto3-mediapackagev2","title":"mypy-boto3-mediapackagev2 Type Annotations","description":"mypy-boto3-mediapackagev2 provides type annotations for the AWS boto3 MediapackageV2 service, generated by the mypy-boto3-builder tool. It allows static type checkers like Mypy, Pyright, and IDEs to provide auto-completion and error detection for boto3 MediapackageV2 client interactions. The library is actively maintained, with frequent updates tied to `mypy-boto3-builder` releases, ensuring compatibility with the latest boto3 versions.","status":"active","version":"1.42.75","language":"en","source_language":"en","source_url":"https://github.com/youtype/mypy_boto3_builder","tags":["aws","boto3","mediapackagev2","mypy","type-hints","stubs","static-analysis"],"install":[{"cmd":"pip install boto3 mypy-boto3-mediapackagev2","lang":"bash","label":"Install boto3 and MediapackageV2 stubs"}],"dependencies":[{"reason":"This package provides type stubs for boto3; boto3 itself is required for runtime functionality.","package":"boto3","optional":false},{"reason":"Mypy (or another compatible type checker like Pyright) is required to utilize these type annotations for static analysis.","package":"mypy","optional":true}],"imports":[{"note":"Import the specific client type for explicit type hints.","symbol":"MediaPackageV2Client","correct":"from mypy_boto3_mediapackagev2.client import MediaPackageV2Client"},{"note":"Import TypeDef classes for precise type hints on service call arguments and responses. Specific TypeDefs will vary per operation.","symbol":"CreateChannelRequestTypeDef","correct":"from mypy_boto3_mediapackagev2.type_defs import CreateChannelRequestTypeDef"}],"quickstart":{"code":"import boto3\nimport os\nfrom typing import TYPE_CHECKING\n\nif TYPE_CHECKING:\n    from mypy_boto3_mediapackagev2.client import MediaPackageV2Client\n    from mypy_boto3_mediapackagev2.type_defs import CreateChannelRequestTypeDef, ChannelTypeDef\n\n# Ensure AWS credentials are configured (e.g., via environment variables or ~/.aws/credentials)\n# For quickstart, using dummy values for illustrative purposes\naws_access_key_id = os.environ.get('AWS_ACCESS_KEY_ID', 'AKIAIOSFODNN7EXAMPLE')\naws_secret_access_key = os.environ.get('AWS_SECRET_ACCESS_KEY', 'wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY')\naws_region = os.environ.get('AWS_REGION', 'us-east-1')\n\ndef create_test_channel(channel_id: str, channel_group_id: str) -> 'ChannelTypeDef':\n    client: MediaPackageV2Client = boto3.client(\n        'mediapackagev2',\n        aws_access_key_id=aws_access_key_id,\n        aws_secret_access_key=aws_secret_access_key,\n        region_name=aws_region\n    )\n\n    channel_config: CreateChannelRequestTypeDef = {\n        'ChannelName': channel_id,\n        'ChannelGroupName': channel_group_id,\n        'InputType': 'CMAF',\n        'Tags': {'Environment': 'dev', 'Project': 'quickstart'}\n    }\n\n    response = client.create_channel(**channel_config)\n    print(f\"Channel '{response['ChannelName']}' created with ARN: {response['Arn']}\")\n    return response\n\nif __name__ == '__main__':\n    # This part would typically be mocked or run against a dev AWS account\n    # to avoid actual resource creation/cost.\n    try:\n        # Example: Attempt to create a channel (this will likely fail without real creds/perms)\n        # and without a pre-existing Channel Group.\n        print(\"Attempting to create a MediaPackageV2 channel...\")\n        created_channel = create_test_channel(\"my-test-channel-123\", \"my-test-channel-group\")\n        # In a real scenario, you'd process 'created_channel' further.\n\n    except Exception as e:\n        print(f\"An error occurred (expected without valid AWS setup): {e}\")\n        print(\"Please ensure 'boto3' is installed and AWS credentials/permissions are correctly configured.\")\n","lang":"python","description":"This quickstart demonstrates how to initialize a `mediapackagev2` client with explicit type annotations and use a typed `TypeDef` for input parameters, which enables static analysis for method calls like `create_channel`. Replace placeholder AWS credentials and ensure your AWS environment is configured for actual execution. The `TYPE_CHECKING` block ensures type imports are only active during type checking, avoiding runtime import issues for stub-only packages."},"warnings":[{"fix":"Upgrade your Python environment to 3.9 or higher.","message":"Python 3.8 support has been removed in `mypy-boto3-builder` version 8.12.0 and subsequent generated packages. This library now requires Python 3.9 or newer.","severity":"breaking","affected_versions":">=8.12.0 (for builder) and dependent stub packages"},{"fix":"Ensure `mypy` is up-to-date and configured to discover installed packages. If issues persist, refer to `mypy-boto3-builder` documentation for specific `mypy` configuration.","message":"The `mypy-boto3-builder` migrated to PEP 561 compliant packages with version 8.12.0. While this improves discoverability for type checkers, it might require ensuring your `mypy` configuration correctly finds installed stub packages.","severity":"breaking","affected_versions":">=8.12.0 (for builder) and dependent stub packages"},{"fix":"Update your code to use the new, shorter TypedDict names where applicable. Refer to the `mypy-boto3-builder` changelog for specific naming adjustments.","message":"Starting with `mypy-boto3-builder` 8.9.0, there were breaking changes in TypedDict naming conventions, primarily shortening redundant suffixes (e.g., `RequestRequestTypeDef` became `RequestTypeDef`) and moving `Extra` suffixes.","severity":"breaking","affected_versions":">=8.9.0 (for builder) and dependent stub packages"},{"fix":"Always install `boto3` alongside `mypy-boto3-mediapackagev2`: `pip install boto3 mypy-boto3-mediapackagev2`.","message":"This package provides *only* type annotations (stubs). It does not include the actual `boto3` library. You must install `boto3` separately for your code to function at runtime.","severity":"gotcha","affected_versions":"All"},{"fix":"Add explicit type annotations for `boto3.client()` return values and for TypedDicts used as arguments/returns.","message":"For optimal IDE auto-completion and static analysis, explicitly type `boto3.client()` calls with the service-specific client class (e.g., `client: MediaPackageV2Client = boto3.client('mediapackagev2')`). Without explicit typing, `mypy` might infer a generic `botocore.client.BaseClient`, reducing type safety.","severity":"gotcha","affected_versions":"All"}],"env_vars":null,"last_verified":"2026-04-11T00:00:00.000Z","next_check":"2026-07-10T00:00:00.000Z"}