twisted/twisted

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

5977 stars · 1221 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Twisted is an event-driven networking engine and framework for Python, providing an asynchronous reactor plus implementations of many internet protocols. It includes subprojects for HTTP clients/servers, SSH, DNS, mail (IMAP/POP3/SMTP), and chat protocols (IRC, XMPP), along with a unit testing framework.

Use cases

• write an async TCP echo server in python
• build an event-driven HTTP server or client
• implement custom network protocols in python
• run an SSH or telnet server from python
• send and receive email programmatically with SMTP and IMAP
• write a DNS server or client in python
• build a chat bot for IRC or XMPP

When to choose

• you need fine-grained control over network protocols in Python
• you need built-in support for many protocols (SSH, DNS, mail, IRC) in one library
• you're maintaining an existing Twisted-based codebase
• you need an event loop that integrates with GUI toolkits or custom reactors

When to avoid

• you're starting a new project where asyncio is sufficient
• you only need simple HTTP requests (use requests/httpx instead)
• your team is unfamiliar with Deferred-based callback style
• you want a modern async/await-first API without legacy patterns

Facets

framework · maturity stable

web-framework http-server http-client websocket networking concurrency ssh email testing middleware networking web-development backend developer-tools microservices python cross-platform windows cli event-driven async reactor tcp udp dns tls deferred protocols linux macos

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