A library for building HTML documents with a simple and learnable syntax, inspired by (and similar to) Cenk Altı's PyHTML library, but with improved documentation and type safety.
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Inline documentation and type safety for all tags.
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A modern and readable codebase.
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No dependencies.
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100% test coverage
>>> import pyhtml as p
>>> my_website = p.html(
... p.head(
... p.title("Hello, world!"),
... p.script(src="http:https://example.com/script.js"),
... ),
... p.body(
... p.h1("Hello, world!"),
... p.p("This is my amazing website!"),
... ),
... )
>>> print(str(my_website))
<html>
<head>
<title>
Hello, world!
</title>
<script type="text/javascript" src="http:https://example.com/script.js"></script>
</head>
<body>
<h1>
Hello, world!
</h1>
<p>
This is my amazing website!
</p>
</body>
</html>Every HTML tag is represented by a class that generates that HTML code. For
example, to create a <br> element, you could use:
>>> line_break = p.br()
>>> print(str(line_break))
<br/>Any arguments to a tag are used as a child element to the created HTML element.
For example, to create a heading with the text "My awesome website", you
could use
>>> heading = p.h1("My awesome website")
>>> print(str(heading))
<h1>
My awesome website
</h1>Any keyword arguments to a tag are used as an attribute of the created HTML element. For example, to create a form submit button, you could use
>>> submit_button = p.input(type="submit")
>>> print(str(submit_button))
<input type="submit"/>In HTML, attributes are specified within the opening tag. Contrastingly, Python requires keyword arguments (attributes) to be specified after regular arguments (children). To maintain similarity to writing regular HTML, you can call an element in order to add more attributes and children. For example, to create a link to PyHTML's GitHub page, you could use
>>> my_link = p.a(href="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/COMP1010UNSW/pyhtml-enhanced")("Take a look at the code")
>>> print(str(my_link))
<a href="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/COMP1010UNSW/pyhtml-enhanced">
Take a look at the code
</a>You can add comments to HTML (useful for debugging) by using the Comment tag.
>>> comment = p.Comment("This is an HTML comment")
>>> print(str(comment))
<!--
This is an HTML comment
-->Converting your PyHTML into HTML is as simple as stringifying it!
>>> print(str(p.i("How straightforward!")))
<i>
How straightforward!
</i>Since this library includes all modern HTML tags, it is very unlikely that
you'll need to do create a custom tag. However if you really need to, you can
create a class deriving from Tag.
>>> class fancytag(p.Tag):
... ...
>>> print(fancytag())
<fancytag></fancytag>Refer to the documentation for Tag for more information.
There are some minor usage differences compared to the original PyHTML library.
Uninstantiated classes are only rendered if they are given as the child of an instantiated element.
>>> p.br
<class 'pyhtml.__tags.generated.br'>
>>> print(str(p.html(p.body(p.br))))
<html>
<body>
<br/>
</body>
</html>Calling an instance of a Tag will return a new tag containing all elements of
the original tag combined with the new attributes and children, but will not
modify the original instance, as I found the old behaviour confusing and
bug-prone.
>>> para = p.p("Base paragraph")
>>> para2 = para("Extra text")
>>> para2
<p>
Base paragraph
Extra text
</p>
>>> para
<p>
Base paragraph
</p>There are a couple of things I haven't gotten round to sorting out yet
- Add default attributes to more tags
- Some tags (eg
<pre>,<script>) currently aren't properly implemented and escape their contents.
Since there are so many HTML tags, it would be extremely tedious to document
them all manually. In the meta directory, you will find code that solves this
problem with the following steps:
-
Download the Markdown source for MDN's documentation of all HTML elements.
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Parse the markdown to gather all tag names and descriptions, discarding garbage data and obsolete tags.
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Use data from a YAML configuration file (
meta/tags.yml) to gather information on suggested attributes and base classes to use for each tag. -
Generate Python code to represent all of these tags, including their documentation.
Cenk Altı's work was used as a source of inspiration and reference. Although
all the code in pyhtml-enhanced was written by me, I want to thank them for
the significant help their hard work provided while creating this project.
Almost all of the documentation was gathered from the MDN Web Docs. It's super neat that all their documentation is open (licensed as CC-BY-SA-2.5 if you're interested).
Copyright (c) 2023 Miguel Guthridge, COMP1010 UNSW
Source code for the library is open source, using the MIT license. A copy of the license text is available in LICENSE.md
Documentation is copied from MDN Web Docs, and is license under CC-BY-SA-2.5. A copy of the license text is available in LICENSE_DOCS.md