最近Stack Overflow上有一群讨厌perl的人，所以我想我应该把我的“关于你最喜欢的语言你讨厌的五件事”的问题带到Stack Overflow上。拿你最喜欢的语言来说，告诉我你讨厌它的五件事。这些可能只是让你烦恼的事情，承认的设计缺陷，公认的性能问题，或任何其他类别。你只需要讨厌它，它必须是你最喜欢的语言。
不要拿它和其他语言比较，也不要谈论你已经讨厌的语言。不要用你最喜欢的语言谈论你喜欢的事情。我只是想听到你讨厌但能容忍的东西，这样你就可以使用所有其他的东西，我想听到你希望别人使用的语言。
每当有人试图把他们最喜欢的语言强加给我时，我就会问这个问题，有时是面试问题。如果有人找不出他最喜欢的工具的5个缺点，那他对它还不够了解，不能提倡它，也不能利用它赚大钱。他还没有在足够多的不同情况下使用它来充分探索它。他把它作为一种文化或宗教来倡导，这意味着如果我不选择他最喜欢的技术，我就错了。
我不在乎你用什么语言。不想使用特定的语言?那就不要。你通过尽职调查做出了明智的选择，但仍然没有使用它?好吧。有时正确的答案是“你有一个强大的编程团队，有良好的实践和丰富的Bar经验。改成Foo是愚蠢的。”
This is a good question for code reviews too. People who really know a codebase will have all sorts of suggestions for it, and those who don't know it so well have non-specific complaints. I ask things like "If you could start over on this project, what would you do differently?" In this fantasy land, users and programmers get to complain about anything and everything they don't like. "I want a better interface", "I want to separate the model from the view", "I'd use this module instead of this other one", "I'd rename this set of methods", or whatever they really don't like about the current situation. That's how I get a handle on how much a particular developer knows about the codebase. It's also a clue about how much of the programmer's ego is tied up in what he's telling me.
憎恨并不是衡量人们了解多少的唯一尺度，但我发现它是一个相当不错的尺度。他们讨厌的事情也让我知道他们对这个话题的思考有多好。
C
bit fields -- they aren't well specified by the language and how they work is compiler dependent and architecture dependent.
It's often hard to find where a particular symbol is defined in a large mass of code, esp. if that symbol is produced by a macro. Which reminds me...
The preprocessor is a rather ugly hack, amenable to all sorts of abuse.
lack of standard sized integers (remedied by uint*_t lately, but there is lots and lots of old code floating around out there with custom typedefs or #defines for DWORD, WORD, BYTE, etc.)
Lack of something akin to Perl's cpan.org (would love to be wrong about that one.)
编辑:
在考虑C的CPAN时，我想……我该怎么称呼这样的东西，然后想到了“ccan”，然后谷歌了一下，我看到了这个:
http://ccan.ozlabs.org/
不过，它似乎还处于起步阶段。
我是在冒险，因为我不能全职使用它，但无论如何我会尝试一下!
Perl 6
func("frew") != func ("frew")
It annoys me, but there is good reason for it. In Perl 5 print (5 + 6) * 10 still gets me every now and then
It may be easier to parse than Perl 5 in a lot of places, but it still kills my editor sometimes
It still has a lot of the line noise Perl 5 which scares a lot of people. That means it's harder to get them excited etc.
There are no libraries yet.
This will be a non issue if Perl 6 does indeed end up supporting Perl 5, but that may be a burden not worth bearing.
There's no REPL, or what rubyists would call irb.
A solid interactive Perl 6 with tab completion, color coding, etc, would make using and learning it so much nicer.
Currently the documentation is basically the English spec. Not exactly an easy read.
I know it's a stupid cliche, but it's not out yet!
(I am allowed to complain because I am helping :-P)
前三点是语言;剩下的并不是语言本身，而是它还没有问世的事实。
Python:
No standard GUI toolkit (the community goes round and round about this but never seems to settle on anything).
The evolution of tools and methods to distribute and install Python apps and libraries has been, well, rocky. (Although lately this seems to be moving closer to getting fixed.)
CPython is still slow as interpreters go (although PyPy is looking pretty good these days, if it becomes the "standard" Python this problem goes away).
You can't subclass built-in classes (e.g., list and dict) without overriding a lot of methods, even if all you want to do is a simple hook into an event (e.g., to hook into an item being added to or removed from the list, you need to override delitem, append, extend, insert, pop, and remove--there's no subclassable "change" event notification, nor any "protected" methods that factor out common code used by all the above methods).
Up until virtualenv was invented, keeping separate Python environments for different purposes on one machine was a real pain.
