types-boto3-stepfunctions

1.43.0 verified Sat May 09 auth: no python

Type annotations for boto3 SFN (Step Functions) service, generated by mypy-boto3-builder. Provides static type checking support for boto3 Step Functions client, service model, and paginators. Version 1.43.0 corresponds to boto3 SFN 1.43.0 service. Package is auto-generated and released on a regular cadence alongside boto3 service updates.

pip install types-boto3-stepfunctions

Common errors

error ModuleNotFoundError: No module named 'mypy_boto3_stepfunctions' ↓

cause Package not installed or wrong Python environment.

fix

Run pip install types-boto3-stepfunctions (note: the package name is 'types-boto3-stepfunctions', but import uses 'mypy_boto3_stepfunctions').

error ImportError: cannot import name 'SFNClient' from 'mypy_boto3_stepfunctions' ↓

cause Outdated package version; SFNClient may not exist in older versions.

fix

Upgrade to latest version: pip install --upgrade types-boto3-stepfunctions.

error TypeError: 'type' object is not subscriptable ↓

cause Using Python <3.9 without importing from __future__ annotations.

fix

Add from __future__ import annotations at top of file, or upgrade to Python >=3.9.

Warnings

breaking Version 8.9.0 of the builder introduced renaming of TypeDefs: extra postfix moved to end (e.g., CreateDistributionExtraRequestTypeDef became CreateDistributionRequestExtraTypeDef). If you use type aliases directly, update imports. ↓

fix Update any references to renamed TypeDefs. Check the changelog for specifics.

deprecated Python 3.8 support removed in builder version 8.12.0. types-boto3-stepfunctions now requires Python >=3.9. ↓

fix Upgrade to Python 3.9 or later.

gotcha These stubs are auto-generated; service changes in boto3 may not be immediately reflected. If you encounter missing types, upgrade the package or report an issue. ↓

fix Run `pip install --upgrade types-boto3-stepfunctions`.

gotcha The package only provides type annotations; it does not include runtime implementations. Ensure boto3 is installed and imported normally. ↓

fix Install boto3 separately: `pip install boto3`.

Imports

SFNClient

from mypy_boto3_stepfunctions import SFNClient

Direct import from package.

SFNServiceResource

from mypy_boto3_stepfunctions import SFNServiceResource

SFNPaginator

from mypy_boto3_stepfunctions.paginator import SFNPaginator

Quickstart

Initialize a typed Step Functions client and call a method.

import boto3
from mypy_boto3_stepfunctions import SFNClient

client: SFNClient = boto3.client('stepfunctions', region_name='us-east-1')
# Now client is fully typed
response = client.list_state_machines()
print(response['stateMachines'])