mypy-boto3-transfer

What it is and what it does

mypy-boto3-transfer is a type-stub package that adds static type information for AWS Transfer service calls made through boto3. It is generated from boto3 1.43.0 using mypy-boto3-builder 8.12.0 and works with mypy, pyright, VSCode, PyCharm, Emacs, Sublime Text, and other tools that support Python type checking.

When installed, it enables IDE code completion and catches type errors at development time without adding runtime dependencies to your application. The package provides explicit type annotations for Transfer clients, paginators, waiters, and service-specific data types. It can be installed standalone or as part of boto3-stubs, and supports both full and lite variants depending on your IDE's performance needs.

Use it for:

• Enable IDE autocomplete and type checking for boto3 Transfer API calls in VSCode or PyCharm.
• Catch type mismatches in Transfer service parameters before runtime using mypy or pyright.
• Provide explicit type hints for Transfer client, paginators, and waiters in production code.
• Reduce debugging time by catching incorrect Transfer API usage during development.
• Use with boto3-stubs[transfer] to get Transfer types alongside common boto3 types.

Worth the install?

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

Provides type annotations for boto3's Transfer service, enabling type checking and IDE code completion for AWS Transfer operations without runtime overhead.

Yes, if you use boto3's Transfer service. The package has low install friction, active maintenance, no security vulnerabilities, and a permissive license. Install it as a development dependency to gain type safety and IDE support; it adds no runtime overhead and can be safely guarded behind TYPE_CHECKING if needed.

Install

mypy-boto3-transfer on PyPI

pip install mypy-boto3-transfer

uv add mypy-boto3-transfer

poetry add mypy-boto3-transfer

Installing mypy-boto3-transfer

Before you install

Low install friction with a single lightweight dependency (typing-extensions). Actively maintained with recent commits and stable production status.

License in practice

MIT license permits unrestricted use, modification, and distribution with minimal restrictions—suitable for both open-source and commercial projects.

Quickstart

pip install mypy-boto3-transfer

from boto3.session import Session
from mypy_boto3_transfer import TransferClient

client: TransferClient = Session().client("transfer")

Requires Python 3.9 or later; type checking tools (mypy, pyright, or IDE language server) must be separately installed to use the annotations.

Verify before relying

• Whether the package works with boto3 versions other than 1.43.0 or if version pinning is required.
• Performance impact on IDE responsiveness when used with PyCharm (documentation mentions potential slowness but does not quantify it).

Package facts

Evidence: mypy_boto3_transfer-1.43.0-py3-none-any.whl

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

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