Spitfire port forPython3
Project description
Introduction
Spitfire is a high-performance Python template language inspired by Cheetah. It originally started out as an experiment to see if techniques used in compilers were applicable to templates. Spitfire has been the primary template language for youtube.com since 2008 and is used to generate billions of views a day.
This particular fork is made so that Spitfire can work with Python 3.
Example
<html>
<head><title>$title</title></head>
<body>
<ul>
#for $user in $users
<li><a href="$user.url">$user.name</a></li>
#end for
</ul>
</body>
</html>
Getting Started
Spitfire's syntax is extremely similar to Cheetah, however some directives and language features have been omitted. If you're already using Cheetah, simple templates will likely compile in Spitfire, and there are a couple compatibility modes to ease transition.
Performance
Spitfire has a basic optimizer that can make certain operations much faster. Using a basic 10x1000 table generation benchmark, Spitfire can be faster than other template systems and compares very favorably to hand-coded Python (the upper limit of performance achievable by compiling to Python bytecode). This is by no means exhaustive proof that Spitfire is always fast, just that it can provide very high performance.
# Python 3.10.9 (main, Dec 19 2022, 17:35:49) [GCC 12.2.0] on linux
$ python tests/benchmarks/render_benchmark.py
Running benchmarks 1000 times each...
Genshi tag builder 646.05 ms
Genshi template 226.59 ms
Genshi template + tag builder 448.92 ms
Mako Template 58.38 ms
Spitfire template 33.79 ms
Spitfire template -O1 20.66 ms
Spitfire template -O2 12.94 ms
Spitfire template -O3 8.19 ms
StringIO 7.95 ms
cStringIO 9.73 ms
list concat 7.32 ms
Jinja2 templates 15.84 ms
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