A Rust HTTP server for Python applications.
Rationale

The main reasons behind Granian design are:

Have a single, correct HTTP implementation, supporting versions 1, 2 (and eventually 3)
Provide a single package for several platforms
Avoid the usual Gunicorn + uvicorn + http-tools dependency composition on unix systems
Provide stable performance when compared to existing alternatives

Features

Supports ASGI/3, RSGI and WSGI interface applications
Implements HTTP/1 and HTTP/2 protocols
Supports HTTPS
Supports Websockets over HTTP/1 and HTTP/2

Waitress is meant to be a production-quality pure-Python WSGI server with very acceptable performance. It has no dependencies except ones which live in the Python standard library. It runs on CPython on Unix and Windows under Python 2.6+ and Python 3.2. It is also known to run on PyPy 1.6.0 on UNIX. It supports HTTP/1.0 and HTTP/1.1.

Bottle is a fast and simple WSGI-framework for the Python Programming Language. It offers request dispatching with url parameter support (routes), templates, key/value databases, a build-in HTTP server and adapters for many third party WSGI/HTTP-server and template engines. All in a single file and with no dependencies other than the Python standard library.

WSGI-compliant HTTP publisher for Python

Otto uses a routes-like syntax to map URLs to code and supports object traversal.

HTTP Utilities with CherryPy