{"library":"mypy-boto3-waf-regional","title":"Mypy Boto3 WAFRegional Stubs","description":"Provides static type annotations for the 'waf-regional' service of `boto3`, enabling robust type checking for AWS WAFRegional client interactions with tools like Mypy. This package is part of the `mypy-boto3` ecosystem, currently at version 1.42.3, and updates in sync with `boto3` releases via the `mypy-boto3-builder`.","language":"python","status":"active","last_verified":"Thu May 14","install":{"commands":["pip install mypy-boto3-waf-regional boto3"],"cli":null},"imports":["from mypy_boto3_waf_regional import WAFRegionalClient","from mypy_boto3_waf_regional.type_defs import ListRulesResponseTypeDef"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import boto3\nfrom mypy_boto3_waf_regional import WAFRegionalClient\nfrom typing import TYPE_CHECKING\nimport os\n\n# Ensure AWS region is set for boto3, e.g., via environment variable or ~/.aws/config\nos.environ.setdefault('AWS_REGION', os.environ.get('AWS_REGION', 'us-east-1'))\n\nif TYPE_CHECKING:\n    # This block is for static type checking only, not executed at runtime.\n    # 'client' will be type-checked as WAFRegionalClient.\n    client: WAFRegionalClient = boto3.client(\"waf-regional\")\n    # Example of a type-checked API call; type checkers will validate arguments and response.\n    response = client.list_rules()\n    print(response.get('Rules')) # Type checker knows 'Rules' is a key here\nelse:\n    # This block runs at runtime. The type hint helps IDEs and linters.\n    client: WAFRegionalClient = boto3.client(\"waf-regional\")\n    try:\n        # Attempt a non-destructive API call to demonstrate functionality.\n        response = client.list_rules()\n        print(f\"Successfully listed WAFRegional rules: {len(response.get('Rules', []))} rules found.\")\n    except Exception as e:\n        print(f\"Error listing WAFRegional rules (check AWS credentials and region): {e}\")\n        print(\"To run this code, ensure AWS credentials are configured (e.g., via AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_REGION environment variables).\")","lang":"python","description":"Demonstrates how to initialize a `boto3` WAFRegional client with type annotations and perform a simple API call. The `TYPE_CHECKING` block ensures type hints are only processed by static analyzers, while the `else` block provides runnable runtime code with basic error handling and region setup for `boto3`.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":{"tag":null,"tag_description":null,"last_tested":"2026-05-14","installed_version":"1.43.0","pypi_latest":"1.43.0","is_stale":false,"summary":{"python_range":"3.10–3.9","success_rate":100,"avg_install_s":3.7,"avg_import_s":0.62,"wheel_type":"wheel"},"results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"mypy-boto3-waf-regional","exit_code":0,"wheel_type":"wheel","failure_reason":null,"import_side_effects":"clean","install_time_s":null,"import_time_s":0.59,"mem_mb":13.7,"disk_size":"51.3M"},{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine 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