---
id: mypy-boto3-application-signals
version: "1.43.35"
license: MIT
license_treatment: permissive
maintenance: active
---

# mypy-boto3-application-signals — Type annotations for boto3 CloudWatchApplicationSignals 1.43.35 service generated with mypy-boto3-builder 8.12.0

License: permissive · Maintenance: active · Downloads: 245.3K/mo

## What it is and what it does

This package is a type-stub library for boto3's CloudWatchApplicationSignals service, generated automatically by mypy-boto3-builder 8.12.0. It provides complete type annotations for the CloudWatchApplicationSignals client, paginators, and type definitions, enabling static type checkers and IDEs to understand boto3 API calls and offer autocomplete and error detection.

It is designed as a development-time dependency that works with mypy, pyright, VSCode (via Pylance), PyCharm, Emacs, Sublime Text, and other tools. The package has no runtime behavior—it only supplies type information. Installation is straightforward via pip, either standalone or as part of boto3-stubs with the application-signals extra, and can be safely excluded from production deployments using TYPE_CHECKING guards.

Use it for:

- Enable IDE autocomplete and inline documentation for CloudWatchApplicationSignals API calls in VSCode or PyCharm.
- Catch type errors in boto3 CloudWatchApplicationSignals code before runtime using mypy or pyright.
- Provide explicit type hints for function parameters and return values when working with CloudWatchApplicationSignals clients.
- Reduce development friction by avoiding manual type annotations for boto3 service objects and responses.
- Integrate type checking into CI/CD pipelines to validate CloudWatchApplicationSignals usage across a codebase.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Provides type annotations and IDE autocomplete support for boto3's CloudWatchApplicationSignals service, enabling static type checking with mypy, pyright, and editor integrations.

Yes, if you use boto3's CloudWatchApplicationSignals service and want static type checking or IDE autocomplete. Install friction is minimal, maintenance is active, and the MIT license poses no restrictions. The only caveat is PyCharm performance with Literal overloads—if you use PyCharm, consider boto3-stubs-lite as an alternative or use mypy/pyright instead.

## Install

pip install mypy-boto3-application-signals
uv add mypy-boto3-application-signals
poetry add mypy-boto3-application-signals

## Installing mypy-boto3-application-signals

Before you install: Low friction install with a single lightweight dependency (typing-extensions). Actively maintained as of 2026-06-22 with recent releases; part of a stable, well-established type-stub ecosystem.

License in practice: MIT license permits unrestricted use, modification, and distribution with minimal restrictions—safe for both open-source and commercial projects.

Quickstart:

# Install with boto3-stubs
python -m pip install 'boto3-stubs[application-signals]'

# In your code
from boto3.session import Session
from mypy_boto3_application_signals import CloudWatchApplicationSignalsClient

client: CloudWatchApplicationSignalsClient = Session().client("application-signals")
# Type checking and IDE autocomplete now work on client calls

Requires Python 3.9 or later. Type checking benefits depend on having mypy, pyright, or a compatible IDE installed separately.

Verify before relying:

- Performance impact in PyCharm with Literal overloads (documentation mentions issue PY-40997 but does not state current status).
- Whether the package works correctly with all listed Python versions (3.9–3.14) in practice.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: active
- Downloads: 245.3K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

boto3 type stubs, cloudwatch application signals typing, mypy boto3 annotations, aws sdk type hints, boto3 ide autocomplete, pyright aws stubs, static type checking aws, type-stubs, aws-sdk, boto3

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