{"id":3678,"library":"mypy-boto3-qbusiness","title":"mypy-boto3-qbusiness Type Annotations","description":"mypy-boto3-qbusiness provides type annotations for the `boto3` QBusiness service, generated by `mypy-boto3-builder`. It enhances code quality, readability, and error detection by enabling static type checking for `boto3` interactions with AWS QBusiness. The library is actively maintained with frequent updates to match `boto3` versions and `mypy-boto3-builder` releases, currently at version 1.42.14.","status":"active","version":"1.42.14","language":"en","source_language":"en","source_url":"https://github.com/youtype/mypy_boto3_builder","tags":["AWS","boto3","mypy","type-hinting","qbusiness","static-analysis"],"install":[{"cmd":"pip install mypy-boto3-qbusiness boto3","lang":"bash","label":"Install library and boto3"},{"cmd":"pip install mypy","lang":"bash","label":"Install MyPy (for static checking)"}],"dependencies":[{"reason":"Provides the AWS SDK for Python, which these type stubs annotate.","package":"boto3","optional":false},{"reason":"A static type checker that uses these annotations.","package":"mypy","optional":true}],"imports":[{"note":"Imports the type for the QBusiness client.","symbol":"QBusinessClient","correct":"from mypy_boto3_qbusiness.client import QBusinessClient"},{"note":"Imports a specific TypedDict for a QBusiness API response structure. The exact TypeDef name will vary by API call.","symbol":"ListApplicationsOutputTypeDef","correct":"from mypy_boto3_qbusiness.type_defs import ListApplicationsOutputTypeDef"}],"quickstart":{"code":"import boto3\nfrom mypy_boto3_qbusiness.client import QBusinessClient\nfrom typing import TYPE_CHECKING\n\n# In a real application, you would configure AWS credentials.\n# For a runnable example, we'll assume default config or environment variables.\n# client: QBusinessClient = boto3.client('qbusiness') # Implicit typing for PyCharm / mypy\n\nif TYPE_CHECKING:\n    client: QBusinessClient = boto3.client('qbusiness')\nelse:\n    client = boto3.client('qbusiness')\n\n# Example: Listing QBusiness applications\n# The return type can also be explicitly hinted if needed\nresponse = client.list_applications()\n\nprint(f\"QBusiness Applications: {response.get('applications', [])}\")\n\n# To run mypy, save this as a .py file and run `mypy your_file.py`","lang":"python","description":"This quickstart demonstrates how to use `mypy-boto3-qbusiness` to type-hint a `boto3` QBusiness client. It shows the import of the `QBusinessClient` type and its application to the `boto3.client` call, enabling static analysis tools like MyPy and IDEs to provide accurate auto-completion and type checking. While some IDEs (like PyCharm) and MyPy can infer types, explicit annotation with `TYPE_CHECKING` is generally recommended for broader compatibility, especially with tools like VSCode."},"warnings":[{"fix":"Upgrade your Python environment to 3.9 or higher. The `requires_python` metadata is `>=3.9`.","message":"Support for Python 3.8 has been removed in `mypy-boto3-builder` version 8.12.0, which generates `mypy-boto3-qbusiness`. Projects relying on Python 3.8 will no longer receive updated type stubs.","severity":"breaking","affected_versions":"mypy-boto3-builder >= 8.12.0"},{"fix":"Update TypeDef import paths and names according to the latest generated stubs. Refer to the specific service's documentation or the `mypy-boto3-builder` release notes for details.","message":"As of `mypy-boto3-builder` version 8.9.0, there were breaking changes to TypeDef naming conventions. For example, `CreateDistributionRequestRequestTypeDef` became `CreateDistributionRequestTypeDef`. If upgrading from significantly older versions, review TypeDef usages.","severity":"breaking","affected_versions":"mypy-boto3-builder >= 8.9.0"},{"fix":"Ensure `boto3` is installed in your environment: `pip install boto3`.","message":"This package provides *type annotations* for `boto3`, not the `boto3` library itself. You must install `boto3` separately for your code to run.","severity":"gotcha","affected_versions":"All"},{"fix":"Use explicit type hints, often guarded by `if TYPE_CHECKING:` to avoid runtime import issues, as shown in the quickstart.","message":"While `mypy-boto3` can offer auto-discovery for types, explicit type annotations for `boto3.client()` calls are often recommended, especially for VSCode users, to ensure optimal auto-completion and static 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"}