编程与软件工程aaronsw.com
重写 Reddit（2005）
Rewriting Reddit (2005)
2012 — 2021，它一次次回到首页
黑点是上首页（≥ 50 分）的那次投稿，空心点是没冲上去的投稿，点越大分数越高。
导读
这是 Aaron Swartz 2005 年的一篇旧文，讲述 reddit 从 Lisp 迁移到 Python、并用 web.py 重写的经过；文中也围绕当时为何不用 Django、以及 Django 的笨重和模板性能等问题展开讨论。它是一份早期 reddit 与 Python Web 框架生态的一手记录。
为什么经久不衰：它保留了 reddit 早期技术选型的现场细节，也让今天的人看到框架争论如何随版本演进而部分过时、部分仍有回声。
HN 评论精选
web.py 不理想，Django 当时因模板慢被弃用，但后来已修复。
web.py 其实一直不太好用，所以我们最终又重写了一次。有意思的是，我们重写时 Django 仍不能胜任，主要因为它的模板引擎太慢。于是我们改选了 Pylons。需要指出，Django 后来已经修复了这个问题。
jedberg查看英文原文
web.py never really worked well, so we ended up rewriting it again. The interesting thing was that Django still wasn't up to the task when we did that, mostly because it's templating engine was too slow. So we chose Pylons instead. It should be noted that Django has since fixed that issue.
提醒这是 2005 年旧文，并补充 Lisp 社区的反应与竞品结局。
文中说 reddit 的朋友一周内把站点从 Lisp 重写成 Python，差不多一个周末就完成；应注明这是 2005 年的旧事。文中还提到 comp.lang.lisp 对此不满、计划用 Lisp 写一个竞品来证明自己；那个项目的下场见链接。
evan_查看英文原文
> My friends over at reddit.com rewrote their site from Lisp to Python in the past week. It was pretty much done after one weekend. It should probably be noted that this is from 2005. > The Lisp newsgroup, comp.lang.lisp, was upset about the switch that they’re currently planning to write a competitor to reddit in Lisp, to show how right they are or something. Here's what became of that: http://www.cl-user.net/asp/new
Django 当年确有模板慢、单体化、User 模型等问题，但社区回应批评并逐步修复；小项目仍不适合 Django。
虽然文章对我是新的，但我不太理解这次提交的语境。（我没用过 web.py，也不完全了解 2005 年 Django 的状态）总体看它们发展得不错。跑 Django 应用只需要一个 settings.py。模板性能慢但表达力强。我喜欢 Django 社区整体对批评很积极，DjangoCon 的“Why Django Sucks”演讲就是一例。我最大的抱怨是糟糕的 User 模型（用 User 模型的 Django 应用不能没有 username），但他们已经修好了。对 Django 的主要抱怨是它太单体，但开发者努力保持解耦，允许替换大多数模块。不过如果你想要小东西，Django 不适合你，这也没问题。不可能做到一刀切，也不是好方案。
superxor查看英文原文
Though the article is new to me I don't understand the context of this submission. (Never using web.py and not being fully aware of Django's status in 2005) I see that overall they seem to have faired well. All you need is a settings.py file to run a Django app. The templating is slow performance-wise but pretty expressive. I love that the Django community as a whole is pretty responsive to criticism. The 'Why Django Sucks' talk at DjangoCon is an example. My biggest complaint was the horrible User model (you cannot not have 'username' for a Django app using the User model). But they've fixed it now. The major complaint against Django is that it is monolithic, but the devs have worked hard to keep the system decoupled allowing one to replace most modules. But if you want something small Django is not the one for you I guess, and there is nothing wrong in it. One size fits all is never possible to achieve and not a good solution too.
Django 曾帮助新手养成好习惯，但样板学习成本高；Pyramid 是极简与可扩展的折中。
我用的第一个 Python Web 框架是 Django。我很庆幸先遇到它，因为当时没经验，它逼我养成很多好习惯。但现在更有经验后，我能理解 Aaron 说的一些话。学这些样板东西很烦！最近给朋友 Rails 应用贡献代码，发现学习每个独立小工具的过程很累。这就是我喜欢 Pyramid 的原因——它起步极简，Hello World 几乎和 Flask 一样短；随着项目增长，你可以按需组织和添加东西。它完全没有魔法。我觉得 Pyramid 是 Flask 极简主义和 Django 可扩展性之间的愉快中间点。
temuze查看英文原文
The first Python web framework I used was Django. I'm really glad I came across it first because I was inexperienced at the time and it forced me to adopt a lot of good practices. However, now that I'm more experienced, I can relate a little to what Aaron is saying here. Learning all of this boilerplate stuff is annoying! Recently, I started contributing to a friend's rails app and I found the process of learning how to use each separate little tool tiresome. This is why I like Pyramid - it starts off dirt simple. Hello World is almost as short in Pyramid as it is in Flask. As you grow, you can start organizing and adding different things as you need them. It has absolutely 0 magic. I find Pyramid to be a happy medium between Flask's minimalism and Django's extensibility.
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