A simple Python HTML generator
Project description
HtmlNode is an internal Domain Specific Language (DSL) using Python to generate HTML templates. It is designed to be really easy and flexible to use. By using DSL instead of a specific templating language, you can write Python code to render HTML directly, so you can debug your presentation logics easily. Also, you get the full power of Python in writing presentation logic, without the hassle to learn another templating language.
An overview for using internal DSL vs external template languages can be found here.
Installation
Automatic installation:
pip install HtmlNode
HtmlNode is listed in PyPI and can be installed with pip or easy_install.
Manual installation: Download the latest source from PyPI.
tar xvzf HtmlNode-$VERSION.tar.gz cd HtmlNode-$VERSION sudo python setup.py install
The HtmlNode source code is hosted on GitHub.
Prerequisites: HtmlNode only runs on Python 2.7 currently.
Features
Very simple syntax and natural way to generate HTML
Unicode support
Auto-escape dangerous characters
Template inheritance support
Context variables insertion into templates
Auto-completion support for IDEs which can introspect
Custom HTML elements can be created on the fly
Flexible ways to include attributes for HTML element
Usage Example
Example 1 - Simple HTML:
Code snippet:
from html_node import html_node as h
template = h.div(class_='container')(
h.span('Hello World!', style='color: pink; font-weight: bold;')
)
print template
Output:
<div class="container">
<span style="color: pink; font-weight: bold;">
Hello World!
</span>
</div>
By default, the actual output is concatenated without space or line feeds.
Example 2 - Simple reusable layout (with inheritance and placeholders)
You can use placeholder to mark different block section to replace with. You give the placeholder a name, and provide a method with the same name that returns a unicode string. You can inherit the layout just like how you normally do in Python.
Code snippet:
from html_node import html_node as h, BaseTemplate, placeholder
class MyLayout(BaseTemplate):
"""My customized layout which other templates can inherit from."""
title = 'HtmlNode'
def template(self):
return h.html5(placeholder('head'), placeholder('body'))
@placeholder
def head(self):
return h.head(
h.title(self.title),
h.link(rel="stylesheet", type="text/css", href="default.css"),
)
@placeholder
def body(self):
return h.body(
h.div(class_=['container', 'expand'])(
placeholder('content')
)
)
@placeholder
def content(self):
raise NotImplementedError
class MyViewTemplate(MyLayout):
"""This template will provide the content block for the layout."""
@placeholder
def content(self):
return u'HtmlNode is a flexible and easy-to-use HTML generator!'
template = MyViewTemplate()
print template
Output:
<!DOCTYPE HTML>
<html>
<head>
<title>HtmlNode</title>
<link href="default.css" type="text/css" rel="stylesheet" />
</head>
<body>
<div class="container expand">
HtmlNode is a flexible and easy-to-use HTML generator!
</div>
</body>
</html>
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