There's something to be said for the comments about Perl's structure equaling Haiku, with the traditional terseness and requisite simplicity of a poem so short - but think about it for a moment. Haiku doesn't put any restriction on content (they don't even have to make sense :) but it's very restrictive on form with the syllable patterns and three-line limit. So really, Perl is more like freeform prose or lyric verse; Haiku is more like Python, because the structure is more important than the content.
Haiku enforces whitespace!
- Ozymandias