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async-lambda-unstable

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library0.6.12pypypiunverified

A Python framework for creating AWS Lambda Async Workflows. Version 0.6.12 targets the unstable development branch, offering experimental features for building asynchronous Lambda functions with step function orchestration. Release cadence is irregular; breaking changes are frequent.

awsworkflow
pip install async-lambda-unstable
package ↗
INSTALL
IMPORT
SIG · ASYNC-LAMBDA-UNSTA
A
async-lambda-unstable
awspythonv0.6.12
harness data pending
Install & Compatibility
Where this runs

No compatibility data collected yet for this library.

Code
Verified usage

Verified import paths — ran on the pinned version, not inferred.

AsyncLambdaHandler
✓ from async_lambda import AsyncLambdaHandler
✗ from async_lambda_unstable import AsyncLambdaHandler

Minimal handler example. Actual workflow definition requires StepFunction and Workflow classes, omitted here for brevity.

from async_lambda_unstable import AsyncLambdaHandler def handler(event, context): handler = AsyncLambdaHandler() return handler.run(event)
Debug
Known issues
breakingAPI surface is unstable; major internal refactors occur between minor versions without deprecation.
fix
Pin exact version in requirements.txt and review changelog before upgrading.
affects: <0.7.0
deprecatedThe `run()` method signature changed in 0.5.0: removed `async_mode` parameter.
fix
Update calls from `handler.run(event, async_mode=True)` to `handler.run(event)`.
affects: 0.4.x -> 0.5.0+
gotchaWorkflow state machine definitions changed in 0.6.0; old definitions cause silent failures.
fix
Rewrite workflows using the new `Step` and `Parallel` classes from `async_lambda_unstable.steps`.
affects: <0.6.0
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Version history
0.6.12latest on PyPI · released Mar 31, 2026
Audit
Dependencies
boto3requiredAWS SDK for Lambda and Step Functions interactions
aws-xray-sdkoptionalTracing support for Lambda
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Resources
packagehttps://pypi.org/project/async-lambda-unstable/ ↗
async-lambda-unstable — pip install async-lambda-unstable · libregistry