release calver changelog

Clastic is a Pythonic microframework for building web applications featuring:

  • Fast, coherent routing system
  • Powerful middleware architecture
  • Built-in observability features via the meta Application
  • Extensible support for multiple templating systems
  • Werkzeug-based WSGI/HTTP primitives, same as Flask


Clastic is pure Python, and tested on Python 2.7-3.7+, as well as PyPy. Installation is easy:

pip install clastic

Then get to building your first application!

from clastic import Application, render_basic

app = Application(routes=[('/', lambda: 'hello world!', render_basic)])

# Visit localhost:5000 in your browser to see the result!