generate html with python 3
Project description
domonic
Generate html with python 3!
from domonic import *
output = render(
html(
head(
style(),
script(),
),
body(
div("hello world"),
a("this is a link", _href="http://www.somesite.com", _style="font-size:10px;"),
ol(''.join([f'{li()}' for thing in range(5)])),
h1("test", _class="test"),
)
)
)
<html><head><style></style><script></script></head><body><div>hello world</div><a href="http://www.somesite.com" style="font-size:10px;">this is a link</a><ol><li></li><li></li><li></li><li></li><li></li></ol><h1 class="test">test</h1></body></html>
install
python3 -m pip install domonic
usage
print(html(body(h1('Hello, World!'))))
<html><body><h1>Hello, World!</h1></body></html>
attributes
prepend attributes with an underscore ( avoids clashing with python keywords )
test = label(_class='classname', _for="someinput")
print(test)
<label class="classname" for="someinput"></label>
lists
just do list comprehension and join it to strip the square brackets
ul(''.join([f'{li()}' for thing in range(5)])),
<ul><li></li><li></li><li></li><li></li></ul>
rendering
render takes 2 parameters, some domonic and an optional output file.
page = div(span('Hello World'))
render(page, 'index.html')
data-tags
python doesn't allow hyphens in parameter names. so use variable keyword argument syntax for custom data-tags
div("test", **{"_data-test":"test"} )
fugly
use your own methods to prettify. the example uses a library that leverages beautifulsoup. i.e.
output = render(html(body(h1('Hello, World!'))))
from html5print import HTMLBeautifier
print(HTMLBeautifier.beautify(output, 4))
Common Errors
If you incorrectly type code it will obviously not work. So there are a bunch of common ones I've noticed when creating large domonic templates. :
IndexError: list index out of range - You most likely didn't put a underscore on an attribute.
SyntaxError: invalid syntax - You are Missing a comma between attributes
SyntaxError: positional argument follows keyword argument - You have to pass attributes LAST. and strings and objects first. see docs
TypeError: unsupported operand type(s) for ** or pow(): 'str' and 'dict' - You are Missing a comma between attributes. before the **{}
TODO - catch these and raise a friendly custom ParseError that tells you what to fix
run tests
python3 test_domonic.py
more
several undocumented features. take a look at the code.
docs
while you can create a div with content like :
div("some content")
python doesn't allow named params before unamed ones. So you can't do this:
div(_class="container", p("Some content") )
or it will complain the params are in the wrong order. You have to instead put content before attributes:
div( p("Some content"), _class="container")
which is annoying when a div gets long. You can get around this several ways.
With 'innerHTML' which is available on every Node:
div( _class="container" ).innerHTML("Some content")
With 'html' which is available on every Node:
div( _class="container" ).html("Some content")
disclaimer
exerimental/learning project
There's a complete more supported library I found already doing similar called 'dominate' . So if you want to do something like this, use that.
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