mypy-boto3-cloudformation

What it is and what it does

This package is a type stub library that adds static type information to boto3's CloudFormation service. It's generated automatically from boto3's API definitions and enables IDEs and type checkers to understand CloudFormation client methods, parameters, and return types without needing explicit annotations in your code.

When installed, it works transparently with mypy, pyright, VSCode, PyCharm, and other tools that support Python type hints. You write boto3 code normally, but your IDE gains full autocomplete and your type checker can catch bugs before runtime. The package is lightweight, depends only on typing-extensions, and is actively maintained to track boto3 releases.

Use it for:

• Enable IDE autocomplete and type checking for CloudFormation API calls in VSCode or PyCharm without manual type annotations.
• Catch CloudFormation API usage errors (wrong parameter names, types) at development time with mypy or pyright.
• Provide type information for CloudFormation paginators, waiters, and service resources in static analysis.
• Use in CI/CD pipelines to validate CloudFormation code before deployment via mypy or pyright type checking.
• Support team development by making CloudFormation API contracts explicit and discoverable in the IDE.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Provides type annotations and IDE autocomplete support for boto3's CloudFormation service, enabling static type checking with mypy, pyright, and other tools.

Yes. This is a low-friction, actively maintained type stub for a widely-used AWS service. Install it if you use boto3 CloudFormation in a project where you want IDE support or static type checking. It has no production dependencies, carries no security vulnerabilities, and uses a permissive MIT license. The only caveat is PyCharm users may experience performance issues; the documentation suggests alternatives if that occurs.

Install

mypy-boto3-cloudformation on PyPI

pip install mypy-boto3-cloudformation

uv add mypy-boto3-cloudformation

poetry add mypy-boto3-cloudformation

Installing mypy-boto3-cloudformation

Before you install

Low install friction with a single lightweight runtime dependency (typing-extensions). Active maintenance with a release 14 days ago and consistent repository activity.

License in practice

MIT license permits unrestricted use, modification, and distribution in both open-source and proprietary projects with minimal obligations.

Quickstart

# Install with pip
python -m pip install mypy-boto3-cloudformation

# Use in your code
import boto3
client = boto3.client('cloudformation')
# Type hints and autocomplete now available in your IDE

Requires Python 3.9 or later; boto3 must be installed separately.

Verify before relying

• Whether the package works correctly with all listed IDE/editor integrations (VSCode, PyCharm, Emacs, Sublime Text) in practice.
• Performance impact when used with PyCharm, given the documentation's warning about slow performance with Literal overloads.
• Whether the lite variant resolves PyCharm performance issues as suggested in the documentation.

Package facts

Evidence: mypy_boto3_cloudformation-1.43.62-py3-none-any.whl

Keywords: boto3, cloudformation, boto3-stubs, type-annotations, mypy, typeshed, autocomplete

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