.png)
3 months ago
1
Bring the power of SolidJS and Angular Signals to Python with automatic dependency tracking.
Think Excel spreadsheets for your Python code—the reactive model you know and love.
pip install reaktiv
Signals You Already Know
Just like Excel formulas automatically recalculate when cells change, or how SolidJS/Angular Signals work— reaktiv brings the same reactive primitives to Python.
Excel Meets Frontend Reactivity
When you change A1 in Excel, all formulas using A1 automatically recalculate. SolidJS and Angular Signals work the same way. reaktiv brings both concepts to Python.
🎯 Familiar Patterns
- • Signal(value) — reactive data sources (like Excel cells)
- • Computed(fn) — derived state (like Excel formulas)
- • Effect(fn) — side effects that auto-run
- • Automatic dependency tracking
- • Fine-grained updates
💡 Use Cases
- • Configuration management
- • Data processing pipelines
- • Real-time monitoring
- • Jupyter notebook computations
- • FastAPI / Django backends
Why reaktiv?
The battle-tested reactive model from SolidJS and Angular, reimagined for Python developers.
Signals for Python
Inspired by Angular and SolidJS, Signal, Computed, and Effect enable fine-grained reactivity.
Automatic Dependency Tracking
reaktiv tracks relationships between variables and updates state precisely and efficiently.
No Boilerplate
Just use plain Python — no decorators, no class magic. It works seamlessly with functions and data.
Designed for Everyone
Whether you're building backends, notebooks, or desktop tools — reaktiv fits right in.
What Developers Say
👨💻
— Early user feedback
Join the growing community of Python developers using reaktiv. Share your experience →
Ready to Get Started?
Install reaktiv and start building reactive Python applications today.
pip install reaktiv
Try Signals in Python!
Experience the SolidJS/Angular reactive model in Python. Run real reaktiv code directly in your browser.
🚀 Basic Example
🔢 Counter App
📝 Todo List
📊 Data Pipeline
💡 Try this: Modify the values, add new signals, or create your own computed values!
ℹ️ Note: Each run starts with a fresh Python session for clean execution.
Output
Click "Run Code" to see the output...
Reactive Primitives
- • Signal — reactive data sources (like SolidJS/Angular)
- • Computed — derived reactive state that auto-updates
- • Effect — side effects that run when dependencies change
- • Everything updates automatically with fine-grained reactivity!
🚀 Instant Feedback
Run code immediately in your browser. No setup, no downloads, no installations required.
🔄 Real Reactivity
See actual reactive updates in action. Watch how changes propagate automatically through your data.
⚡ Learn by Doing
Experiment with different examples. Modify code, break things, learn how reactivity works.
