Registry / type-stubs / mypy-boto3-cost-optimization-hub

mypy-boto3-cost-optimization-hub

library1.43.25pypypi✓ verified 22d ago

This library provides comprehensive type annotations for the `boto3` AWS SDK's Cost Optimization Hub service. Generated by `mypy-boto3-builder`, it ensures full type checking compatibility with tools like MyPy, Pyright, VSCode, and PyCharm, enabling developers to write more robust and error-free AWS-interacting Python code. The current version is 1.42.3, following the active and frequent release cadence of the underlying `mypy-boto3-builder` project.

type-stubs aws

pip install mypy-boto3-cost-optimization-hub

github ↗package ↗docs ↗

INSTALL

IMPORT

SIG · MYPY-BOTO3-COST-OP

mypy-boto3-cost-optimization-hub

type-stubspythonv1.43.25

Install

3.3s avg

Import

11ms

Disk

18MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v1.43.25 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.910 runs

installs and imports cleanly · install 0.0s · import 0.010s · 19.7MB

glibc

py 3.10–3.910 runs

installs and imports cleanly · install 3.3s · import 0.006s · 20MB

18MB installed

● package 18MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

CostOptimizationHubClient

✓ from typing import TYPE_CHECKING if TYPE_CHECKING: from mypy_boto3_cost_optimization_hub.client import CostOptimizationHubClient

Imports for type stubs should ideally be guarded by `if TYPE_CHECKING:` to avoid runtime dependencies on stub packages.

ResponseMetadataTypeDef

✓ from typing import TYPE_CHECKING if TYPE_CHECKING: from mypy_boto3_cost_optimization_hub.type_defs import ResponseMetadataTypeDef

TypeDefs provide precise type hints for API response structures and should also be guarded by `if TYPE_CHECKING:`.

This quickstart demonstrates how to instantiate a type-hinted `CostOptimizationHubClient` and perform a basic API call, `list_recommendation_summaries`. It includes the recommended `TYPE_CHECKING` guard for stub imports and basic error handling.

import boto3 from typing import TYPE_CHECKING if TYPE_CHECKING: from mypy_boto3_cost_optimization_hub.client import CostOptimizationHubClient from mypy_boto3_cost_optimization_hub.type_defs import ListRecommendationSummariesResponseTypeDef def get_cost_optimization_client() -> CostOptimizationHubClient: """Returns a type-hinted CostOptimizationHub client.""" session = boto3.session.Session() return session.client("cost-optimization-hub") client: CostOptimizationHubClient = get_cost_optimization_client() try: # Example: List recommendation summaries response: ListRecommendationSummariesResponseTypeDef = client.list_recommendation_summaries() print(f"Recommendations found: {len(response.get('RecommendationSummaries', []))}") for summary in response.get('RecommendationSummaries', []): print(f" - {summary.get('RecommendationTarget')}: {summary.get('EstimatedSavings', {}).get('Amount')}") except client.exceptions.AccessDeniedException as e: print(f"Error: Access Denied. Ensure you have permissions for Cost Optimization Hub. Details: {e}") except Exception as e: print(f"An unexpected error occurred: {e}")

Debug

Known issues

breakingPython 3.8 support was removed starting with `mypy-boto3-builder` version 8.12.0. Consequently, `mypy-boto3-cost-optimization-hub` version 1.42.3 and newer require Python 3.9 or higher.

fix

Upgrade your Python environment to 3.9 or a newer supported version. If unable to upgrade, you must pin to an older version of `mypy-boto3-cost-optimization-hub` that supported Python 3.8.

affects: >=1.42.3 (for this package), >=8.12.0 (for mypy-boto3-builder)

breakingThe `mypy-boto3` ecosystem migrated to PEP 561 compliant packages with `mypy-boto3-builder` version 8.12.0. While this improves packaging standards, it might affect custom build processes or older environments directly consuming `mypy-boto3-builder` outputs, though direct `pip install` users should see minimal impact.

fix

Ensure your project's packaging and type-checking configurations are up-to-date with PEP 561 standards. For most users, simply updating `pip` and installing the latest stubs should suffice.

affects: >=1.42.3 (for this package), >=8.12.0 (for mypy-boto3-builder)

gotchaTo avoid runtime dependencies on `mypy-boto3-cost-optimization-hub` and prevent potential Pylint warnings, always wrap type-specific imports (e.g., `CostOptimizationHubClient`, `TypeDefs`) within an `if TYPE_CHECKING:` block.

fix

Modify your imports to use the `if TYPE_CHECKING:` pattern: `from typing import TYPE_CHECKING
if TYPE_CHECKING:
    from mypy_boto3_cost_optimization_hub.client import CostOptimizationHubClient`.

affects: All versions

breakingAcross the `mypy-boto3` family, `TypeDef` naming conventions changed with `mypy-boto3-builder` version 8.9.0. This involved shortening packed method argument TypeDefs (e.g., `CreateDistributionRequestRequestTypeDef` to `CreateDistributionRequestTypeDef`) and moving 'Extra' postfixes.

fix

Review your code for direct usage of specific `TypeDef` names. If you encounter `NameError` or type-checking issues with `TypeDef`s, consult the `mypy-boto3` documentation for the updated naming conventions for Cost Optimization Hub types.

affects: >=1.42.3 (for this package), >=8.9.0 (for mypy-boto3-builder)

Errors

Common errors & fixes

ModuleNotFoundError: No module named 'mypy_boto3_cost_optimization_hub'

The `mypy-boto3-cost-optimization-hub` package, or its parent `boto3-stubs` with the specific service extra, is not installed in the Python environment being used.

fix

Install the package using pip: `python -m pip install mypy-boto3-cost-optimization-hub` or `python -m pip install 'boto3-stubs[cost-optimization-hub]'`.

error: Cannot find implementation or library stub for module named 'boto3.client.costoptimizationhub'

MyPy is unable to locate or properly utilize the installed type stubs for `boto3` or the specific `cost-optimization-hub` service. This often happens if MyPy is running in a different Python environment than where the stubs are installed, or due to MyPy's import resolution challenges.

fix

Ensure `mypy-boto3-cost-optimization-hub` (or `boto3-stubs[cost-optimization-hub]`) is correctly installed in the active virtual environment. Verify that MyPy is configured to use the correct Python executable or environment. If issues persist, explicitly add the stub's path to `MYPYPATH` or use the `--python-executable` flag when running MyPy.

error: Incompatible types in assignment (expression has type "Any", variable has type "CostOptimizationHubClient")

When `boto3.client('cost-optimization-hub')` is called, MyPy often infers the client object's type as `Any` if explicit type annotations are not provided, leading to type checking errors when assigning it to a specific `mypy-boto3` client type. This also applies when passing an `Any`-typed client to a function expecting a typed client.

fix

Explicitly annotate the `boto3.client` call with the correct client type imported from `mypy_boto3_cost_optimization_hub`. For example: `from mypy_boto3_cost_optimization_hub.client import CostOptimizationHubClient; client: CostOptimizationHubClient = boto3.client('cost-optimization-hub')`.

Upgrade

Version history

1.43.25latest on PyPI · released Jun 8, 2026

Audit

Dependencies

boto3requiredProvides the underlying AWS SDK runtime functionality that these type stubs annotate.

Agent activity

21 hits · last 30 days

node

OpenAI (training)

Amazon

Resources

githubhttps://github.com/youtype/mypy_boto3_builder ↗

packagehttps://pypi.org/project/mypy-boto3-cost-optimization-hub/ ↗

docshttps://youtype.github.io/boto3_stubs_docs/mypy_boto3_cost_optimization_hub/ ↗