Skip to content

- Add recipe for selectolax - #3352

Merged
kuzeyron merged 3 commits into
kivy:developfrom
EchterAlsFake:add-selectolax-recipe
Aug 4, 2026
Merged

- Add recipe for selectolax#3352
kuzeyron merged 3 commits into
kivy:developfrom
EchterAlsFake:add-selectolax-recipe

Conversation

@EchterAlsFake

@EchterAlsFake EchterAlsFake commented Jun 27, 2026

Copy link
Copy Markdown
Contributor

Hi,

I have added a recipe for the HTML5 parsing library selectolax. I have tested it alongside a QML application by importing the package and parsing a HTML structure.

The compilation aswell as the import worked fine without any errors.

Here's the exact code that I used for testing:

import sys
import os
import traceback
import asyncio
from PySide6.QtCore import QObject, Slot, Signal
from PySide6.QtGui import QGuiApplication
from PySide6.QtQml import QQmlApplicationEngine

os.environ["QT_QUICK_CONTROLS_STYLE"] = "Material"
os.environ["QT_QUICK_CONTROLS_MATERIAL_THEME"] = "Dark"
os.environ["QT_QUICK_CONTROLS_MATERIAL_ACCENT"] = "Blue"

class ScraperBridge(QObject):
    titleExtracted = Signal(str)

    @Slot()
    def startParsing(self):
        asyncio.create_task(self.async_extract())

    async def async_extract(self):

        sample_html = """
        <html>
            <head><title>Test Page</title></head>
            <body>
                <div class="content">
                    <h1>Hello from Selectolax & PySide6 QML!</h1>
                    <p>This parsing engine is running blazingly fast in C.</p>
                </div>
            </body>
        </html>
        """

        # Parse using selectolax's Lexbor engine
        from selectolax.lexbor import LexborHTMLParser
        tree = LexborHTMLParser(sample_html)
        h1_node = tree.css_first("div.content h1")

        if h1_node:
            extracted_text = h1_node.text(strip=True)
        else:
            extracted_text = "H1 Element not found!"

        # Send the clean string back to the QML interface
        self.titleExtracted.emit(extracted_text)



async def main():
    app = QGuiApplication(sys.argv)
    engine = QQmlApplicationEngine()

   
    scraper_bridge = ScraperBridge()
    
    # Expose the Python object directly to the QML context engine
    engine.rootContext().setContextProperty("scraperBackend", scraper_bridge)

    engine.load("main.qml")

    if not engine.rootObjects():
        sys.exit(-1)

    while app.property("isExiting") is not True:
        app.processEvents()
        await asyncio.sleep(0.01)

if __name__ == "__main__":
    try:
        asyncio.run(main())
    except KeyboardInterrupt:
        pass

@kuzeyron

kuzeyron commented Jun 30, 2026

Copy link
Copy Markdown
Contributor

pythonforandroid/recipes/selectolax/__init__.py:10:28: W292 no newline at end of file

@T-Dynamos

T-Dynamos commented Jun 30, 2026

Copy link
Copy Markdown
Member

@EchterAlsFake Thanks for your contribution. Could you please shift recipe from CythonRecipe to PyProjectRecipe with appropriate cython version in hostpython perquisites?

@EchterAlsFake

EchterAlsFake commented Jul 1, 2026

Copy link
Copy Markdown
Contributor Author

@T-Dynamos Hi, I don't know which exact Cython version I am supposed to specify. I just left it without any version and it works just fine.

Am I supposed to just add the one permanently that works right now?
Pushed the new commit with PyProjectRecipe :)

@T-Dynamos

T-Dynamos commented Jul 1, 2026

Copy link
Copy Markdown
Member

@EchterAlsFake Thanks for changing.

As for cython version you can pin currently working version.

@EchterAlsFake

EchterAlsFake commented Jul 2, 2026

Copy link
Copy Markdown
Contributor Author

@T-Dynamos I have pinned the newest Cython version, thanks a lot for your time.
Should be fine now :)

T-Dynamos
T-Dynamos approved these changes Jul 2, 2026
View reviewed changes

@T-Dynamos T-Dynamos left a comment

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM.

@kuzeyron
kuzeyron force-pushed the add-selectolax-recipe branch from 9326358 to 08a2ed2 Compare August 4, 2026 09:32
@kuzeyron
kuzeyron merged commit d156b3d into kivy:develop Aug 4, 2026
38 checks passed
AndreMiras
AndreMiras reviewed Aug 4, 2026
View reviewed changes
Comment thread pythonforandroid/recipes/selectolax/__init__.py
version = '0.4.10'
url = 'https://pypi.python.org/packages/source/s/selectolax/selectolax-{version}.tar.gz'
depends = ['setuptools']
hostpython_prerequisites = ['cython==3.2.8']

@AndreMiras AndreMiras Aug 4, 2026

Copy link
Copy Markdown
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Late minor comment: Ideally the version pinning should be relaxed a bit whenever it's possible

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@AndreMiras AndreMiras AndreMiras left review comments
@T-Dynamos T-Dynamos T-Dynamos approved these changes

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

4 participants

@EchterAlsFake @kuzeyron @T-Dynamos @AndreMiras