types-aiobotocore-stepfunctions
Type annotations for aiobotocore SFN 3.9.0 service generated with mypy-boto3-builder 8.12.0
Decision gist · record as of 2026-08-14
Yes. This is a lightweight, actively maintained type stub with no security issues, permissive licensing, and low install friction. Install it if you use aiobotocore's Step Functions service and want IDE support and static type checking; it is especially valuable in teams using mypy or pyright. If you experience PyCharm performance issues, the documentation suggests switching to the lite variant.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later; aiobotocore must be installed separately as a runtime dependency.
- Low install friction with a single lightweight runtime dependency (typing-extensions).
- Actively maintained with a recent release (12 days old) and stable repository status.
License · maintenance · safety
MIT (permissive) — MIT license permits unrestricted use, modification, and distribution with minimal obligations—safe for both open-source and commercial projects.
last release 2026-08-02 (12 days) · last repo commit 2026-06-22 · 670 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 459,502 downloads/mo, #6,542 on PyPI
Alternatives
Verify before relying
pip install types-aiobotocore-stepfunctions
from aiobotocore.session import get_session
from types_aiobotocore_stepfunctions import SFNClient
session = get_session()
async with session.create_client("stepfunctions") as client:
client: SFNClient # Type checker now understands client methods- Performance impact in PyCharm with Literal overloads (documentation mentions issue PY-40997 but does not quantify severity).
- Whether the lite variant (types-aiobotocore-lite) is necessary for typical projects or only for performance-constrained environments.
What it is and what it does
This package is a type stub library for aiobotocore's Step Functions (SFN) service, generated by mypy-boto3-builder. It provides complete type annotations and IDE-friendly overloads so that your editor and type checker can understand the shape and behavior of aiobotocore's SFN client, paginators, and related objects without requiring explicit type hints in your code.
You install it alongside aiobotocore, and it works transparently with VSCode (via Pylance), PyCharm, Emacs, Sublime Text, mypy, pyright, and other type-aware tools. The package is pure stubs—it adds no runtime behavior—and can be safely confined to development dependencies using TYPE_CHECKING guards if needed. It supports Python 3.9 through 3.14 and is actively maintained.
Use it for
- Enable IDE autocomplete and inline documentation for aiobotocore Step Functions client methods without writing manual type annotations.
- Catch type errors in Step Functions API calls (e.g., wrong parameter names or types) during development with mypy or pyright.
- Provide paginator and waiter type hints for Step Functions list and describe operations.
- Support type-aware refactoring and navigation in IDEs when working with async Step Functions workflows.
- Keep type checking in CI/CD pipelines while avoiding runtime overhead by importing stubs only under TYPE_CHECKING.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
This is a lightweight, actively maintained type stub with no security issues, permissive licensing, and low install friction. Install it if you use aiobotocore's Step Functions service and want IDE support and static type checking; it is especially valuable in teams using mypy or pyright. If you experience PyCharm performance issues, the documentation suggests switching to the lite variant.
Install
types-aiobotocore-stepfunctions on PyPI
Before you install
Low install friction with a single lightweight runtime dependency (typing-extensions). Actively maintained with a recent release (12 days old) and stable repository status.
Requires Python 3.9 or later; aiobotocore must be installed separately as a runtime dependency.
License in practice
MIT license permits unrestricted use, modification, and distribution with minimal obligations—safe for both open-source and commercial projects.
Quickstart
pip install types-aiobotocore-stepfunctions
from aiobotocore.session import get_session
from types_aiobotocore_stepfunctions import SFNClient
session = get_session()
async with session.create_client("stepfunctions") as client:
client: SFNClient # Type checker now understands client methodsVerify before relying
- Performance impact in PyCharm with Literal overloads (documentation mentions issue PY-40997 but does not quantify severity).
- Whether the lite variant (types-aiobotocore-lite) is necessary for typical projects or only for performance-constrained environments.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagetyping-extensions |
| Maintenance | Actively maintained 12 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 459,502 / month, #6,542 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableEnvironment :: ConsoleIntended Audience :: DevelopersNatural Language :: EnglishOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonTyping :: Stubs Only |
Evidence: types_aiobotocore_stepfunctions-3.9.0-py3-none-any.whl
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See also mypy-boto3-stepfunctions · types-aiobotocore-ec2 · types-boto3-stepfunctions · types-aiobotocore-iot · types-aiobotocore-connect · types-aiobotocore-s3 · types-aiobotocore-translate · types-aiobotocore · types-aiobotocore-full · types-aiobotocore-cloudformation