要使 Python 写的程序能在 Web 上被访问，还需要搭建一个支持 Python 的 HTTP 服务器。下面列举一些常见的 Python HTTP 服务器，以及它们目前的大致发展情况，以便用户的对比选择：
| Name | Version | http 1.1 | Flavour | Repo. | Community |
|---|---|---|---|---|---|
| Gunicorn | 0.6.4 | No | processor/thread | GIT | #gunicorn |
| uWSGI | Trunk (253) | Yes | processor/thread | repo | Mailing List |
| FAPWS3 | 0.3.1 | No | processor/thread | GIT | Google Groups |
| Aspen | 0.8 | No | processor/thread | SVN | Google Groups |
| Mod_WSGI | 3.1 | Yes | processor/thread | SVN | Google Groups |
| wsgiref | Py 2.6.4 | No | processor/thread | SVN | Mailing List |
| CherryPy | 3.1.2 | Yes | processor/thread | SVN | Planet, IRC |
| Magnum Py | 0.2 | No | processor/thread | SVN | Google Groups |
| Twisted | 10.0.0 | Yes | processor/thread | SVN | Community |
| Cogen | 0.2.1 | Yes | callback/generator | SVN | Google Groups |
| GEvent | 0.12.2 | Yes | lightweight threads | Mercurial | Google Groups |
| Tornado | 0.2 | Yes | callback/generator | GIT | Google Groups |
| Eventlet | 0.9.6 | Yes | lightweight threads | Mercurial | Mailinglist |
| Concurrence | tip | Yes | lightweight threads | GIT | Google Groups |
比较有名的大概就这些，接下来我们会慢慢探讨一些用得比较广的 HTTP 服务器的使用方法。