Twisted
Event-driven networking engine for Python
Pricing
Free tier
Flat rate
Adoption
→StableLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Twisted?
Twisted is an event-driven networking engine written in Python. It provides a framework to build scalable network applications and supports various protocols.
Key differentiator
“Twisted offers a comprehensive and flexible framework for building scalable network applications in Python, focusing on event-driven programming.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Twisted's Deferred model is less intuitive and powerful compared to async/await in Python 3.5+
Some examples and tutorials do not reflect the latest version of Twisted
Twisted's reactor loop can introduce latency in high-throughput scenarios compared to native I/O operations
Fit analysis
Who is it for?
✓ Best for
Python developers building complex, event-driven network applications
Teams needing a robust framework for handling multiple protocols and connections
Projects requiring high performance and scalability in network communication
✕ Not a fit for
Developers looking for a simple HTTP server (Twisted is more complex)
Projects that require real-time data streaming with low latency
Applications where the overhead of an event-driven architecture would be prohibitive
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Next step
Get Started with Twisted
Step-by-step setup guide with code examples and common gotchas.