mypy-boto3-emr

What it is and what it does

mypy-boto3-emr is a type-stub package that adds complete type annotations to boto3's EMR service client. It enables IDE autocomplete, type checking with mypy and pyright, and catches potential bugs at development time rather than runtime. The package is generated from boto3 1.43.50 and works with VSCode, PyCharm, Emacs, Sublime Text, and other editors that support Python language servers.

You install it alongside boto3 and use it transparently—your boto3 code works exactly as before, but now your IDE knows the types of EMR client methods, their parameters, return values, paginators, and waiters. The package includes explicit type annotations for EMRClient, paginators (ListClustersPaginator, ListInstancesPaginator, etc.), and waiters, letting you write safer EMR automation scripts without manual type hints.

Use it for:

• Add type checking to EMR cluster management scripts using mypy or pyright in CI/CD pipelines.
• Get IDE autocomplete and inline documentation for EMR client methods while writing boto3 code.
• Catch typos and incorrect parameter names in EMR API calls before runtime.
• Use explicit type annotations for EMRClient in large codebases to improve code clarity and maintainability.
• Enable type-safe pagination over EMR resources (clusters, instances, steps) with full IDE support.

Worth the install?

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

Provides type annotations and IDE autocompletion support for boto3's EMR (Elastic MapReduce) service, compatible with mypy, pyright, VSCode, PyCharm, and other development tools.

Yes, if you use boto3 to manage AWS EMR clusters and want type safety and IDE support. Install friction is minimal, maintenance is active, and the MIT license is unrestricted. The package adds no runtime overhead (it is stubs-only) and integrates transparently with existing boto3 code. Recommended for any team using EMR automation.

Install

mypy-boto3-emr on PyPI

pip install mypy-boto3-emr

uv add mypy-boto3-emr

poetry add mypy-boto3-emr

Installing mypy-boto3-emr

Before you install

Low install friction with a single lightweight runtime dependency (typing-extensions). Actively maintained with recent releases; repository shows 670 stars and last commit on 2026-06-22.

License in practice

MIT license (permissive) means you can use this package freely in commercial and open-source projects without significant legal restrictions.

Quickstart

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

# Use in code
from boto3.session import Session
from mypy_boto3_emr import EMRClient

client: EMRClient = Session().client("emr")
# Type checking and IDE autocomplete now work for EMR client calls

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

Verify before relying

• Whether PyCharm performance issues with Literal overloads (mentioned in docs) affect typical EMR workflows.
• How complete the paginator and waiter type coverage is for all EMR operations.

Package facts

Evidence: mypy_boto3_emr-1.43.50-py3-none-any.whl

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

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