localstack-twisted
An asynchronous networking framework written in Python
Decision gist · record as of 2026-08-14
Yes, if you need Twisted's asynchronous networking capabilities and either use LocalStack or prefer the size-optimized distribution. The active maintenance, low install friction, permissive license, and lack of known vulnerabilities make it a sound choice. However, verify that the excluded modules don't affect your specific use case, and confirm compatibility if you depend on packages expecting the standard Twisted distribution.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.8 or later; some functionality may depend on system-level networking libraries.
- Low install friction with 11 runtime dependencies.
- The package is actively maintained with a recent release (95 days ago) and the underlying repository shows active development with 5975 stars.
License · maintenance · safety
MIT License (permissive) — MIT License permits commercial and private use with minimal restrictions, making it suitable for most projects without licensing concerns.
last release 2026-05-11 (95 days) · last repo commit 2026-08-13 · 5,975 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 77,172 downloads/mo, #14,551 on PyPI
Alternatives
Verify before relying
pip install localstack-twisted
from twisted.internet import reactor
from twisted.internet.protocol import Protocol
class EchoProtocol(Protocol):
def dataReceived(self, data):
self.transport.write(data)
reactor.run()- Whether the size reduction from excluding tests and modules meaningfully impacts performance or functionality compared to standard Twisted.
- Compatibility guarantees between this distribution and packages expecting the standard Twisted package.
- Whether LocalStack-specific optimizations introduce behavioral differences in edge cases.
What it is and what it does
This package is a curated distribution of Twisted, an established asynchronous networking framework for Python, repackaged by LocalStack with tests and unused modules removed to reduce installation size. It provides the core Twisted functionality for building event-driven, non-blocking network applications—servers, clients, protocols, and reactive components—while maintaining compatibility with the standard Twisted API.
The package depends on 11 runtime libraries including attrs, h2, hyperlink, pyopenssl, and zope-interface, which together provide protocol handling, HTTP/2 support, TLS encryption, and interface definitions. It supports Python 3.8 through 3.12 and is actively maintained, with the latest release tracking recent Twisted upstream versions. The permissive MIT license and low install friction make it accessible for most projects.
Use it for
- Building asynchronous TCP/UDP servers and clients without blocking I/O.
- Implementing custom network protocols and protocol handlers for real-time applications.
- Creating event-driven web services and WebSocket applications with Twisted's HTTP support.
- Developing reactive systems that handle concurrent connections efficiently.
- LocalStack environments where reduced package size is beneficial for container or embedded deployments.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need Twisted's asynchronous networking capabilities and either use LocalStack or prefer the size-optimized distribution.
The active maintenance, low install friction, permissive license, and lack of known vulnerabilities make it a sound choice. However, verify that the excluded modules don't affect your specific use case, and confirm compatibility if you depend on packages expecting the standard Twisted distribution.
Install
localstack-twisted on PyPI
Before you install
Low install friction with 11 runtime dependencies. The package is actively maintained with a recent release (95 days ago) and the underlying repository shows active development with 5975 stars.
Requires Python 3.8 or later; some functionality may depend on system-level networking libraries.
License in practice
MIT License permits commercial and private use with minimal restrictions, making it suitable for most projects without licensing concerns.
Quickstart
pip install localstack-twisted
from twisted.internet import reactor
from twisted.internet.protocol import Protocol
class EchoProtocol(Protocol):
def dataReceived(self, data):
self.transport.write(data)
reactor.run()Verify before relying
- Whether the size reduction from excluding tests and modules meaningfully impacts performance or functionality compared to standard Twisted.
- Compatibility guarantees between this distribution and packages expecting the standard Twisted package.
- Whether LocalStack-specific optimizations introduce behavioral differences in edge cases.
Package facts
| License | MIT License permissive |
| Python support | Supports the current Python release >=3.8.0 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 11 packagesattrsconstantlyh2hyperlinkidnaincrementalprioritypyopenssltwisted-iocpsupporttyping-extensionszope-interface |
| Maintenance | Actively maintained 95 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 77,172 / month, #14,551 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Programming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9 |
Evidence: localstack_twisted-26.4.0-py3-none-any.whl
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See also Twisted · txaio · terraform-local · treq · tornado · localstack · pytest-twisted · localstack-client · pulumi-local · anyio