All Template Languages Suck Suck Suck

aka

Why another template language?

Because we can™

(Who’s “we”?)

Mike / YouTube

(f**king genius)

Yours truly

(markup obsessive)

Also, because

All Template Languages Suck Suck Suck

Why do they suck?

Let me count the ways…

Either they look like this

UGLY <p class=”<?php someClass() ?>”> <?php callSomeFunction() ?> </p>

Or they perform like this

We can do better

We want

NICE <p tal:content=”context/something”> Text goes here </p>

and

What are your current options?

TAL Genshi Myghty/Mako Cheetah Your own

TAL

Genshi

Myghty/Mako

Cheetah

Your own

Let’s do a simple benchmark

Standardized test bigtable.py http ://genshi.edgewall.org/wiki/GenshiPerformance · obviously synthetic · 10×1000 table render · measures pure throughput · measures pure throughput · measures pure throughput · measures pure throughput · measures pure throughput · measures pure throughput · measures pure throughput · measures pure throughput

Rendering times

100% Python goodness

Current version: Compiler: ~2000 LoC Runtime: 150 LoC Runtime: 150 LoC Runtime: 150 LoC Runtime: 150 LoC

Compiles templates to bytecode

Pluggable syntax

Both XML and text modes

Rendering times

Rendering times

Rendering times