Soup Sieve

Overview

Soup Sieve is a CSS selector library designed to be used with Beautiful Soup 4. It aims to provide selecting, matching, and filtering using modern CSS selectors. Soup Sieve currently provides selectors from the CSS level 1 specifications up through the latest CSS level 4 drafts and beyond (though some are not yet implemented).

Soup Sieve was written with the intent to replace Beautiful Soup's builtin select feature, and as of Beautiful Soup version 4.7.0, it now is :confetti_ball:. Soup Sieve can also be imported in order to use its API directly for more controlled, specialized parsing.

Soup Sieve has implemented most of the CSS selectors up through the latest CSS draft specifications, though there are a number that don't make sense in a non-browser environment. Selectors that cannot provide meaningful functionality simply do not match anything. Some of the supported selectors are:

.classes
#ids
[attributes=value]
parent child
parent > child
sibling ~ sibling
sibling + sibling
:not(element.class, element2.class)
:is(element.class, element2.class)
parent:has(> child)
and many more

Installation

You must have Beautiful Soup already installed:

pip install beautifulsoup4

In most cases, assuming you've installed version 4.7.0, that should be all you need to do, but if you've installed via some alternative method, and Soup Sieve is not automatically installed, you can install it directly:

pip install soupsieve

If you want to manually install it from source, first ensure that build is installed:

pip install build

Then navigate to the root of the project and build the wheel and install (replacing <ver> with the current version):

python -m build -w
pip install dist/soupsieve-<ver>-py3-none-any.whl

Documentation

Documentation is found here: https://facelessuser.github.io/soupsieve/.

License

MIT

Release files for soupsieve 2.9.2

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for soupsieve 2.9.2
File	Size	Uploaded
soupsieve-2.9.2.tar.gz	122.4 kB	Aug 7, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for soupsieve 2.9.2
File	Interpreter	ABI	Platform	Reset
soupsieve-2.9.2-py3-none-any.whl 37.4 kB Aug 7, 2026	Python 3	none	any	Details

Total release size: 159.8 kB

Release files / soupsieve-2.9.2.tar.gz

Download URL	soupsieve-2.9.2.tar.gz
Size	122.4 kB
Tags	Source
SHA-256 checksum How to use checksums	`4a55d8cf158a9c2e587fa4922f1bbb91d68ac829e2d6f25403a85747c71daf74`
BLAKE2b-256 checksum How to use checksums	`6999a6ca3beb3ccacb41fb3321d8a60e5566f9e6467601ef8eba6a17e1b89778`
Upload date	Aug 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

Identity

Publishing platform: GitHub Actions
Publishing repository: github.com/facelessuser/soupsieve
Publishing commit: github.com/facelessuser/soupsieve/tree/78661a6e4f54e0bc3ec99f548e9fcd6787d1902c

Workflow

Publishing configuration: github.com/facelessuser/soupsieve/blob/78661a6e4f54e0bc3ec99f548e9fcd6787d1902c/.github/workflows/deploy.yml
Publishing logs: github.com/facelessuser/soupsieve/actions/runs/31136383569/attempts/1

Artifact

Subject: soupsieve-2.9.2.tar.gz
SHA-256 checksum: 4a55d8cf158a9c2e587fa4922f1bbb91d68ac829e2d6f25403a85747c71daf74 Verifying attestations

Release files / soupsieve-2.9.2-py3-none-any.whl

Download URL	soupsieve-2.9.2-py3-none-any.whl
Size	37.4 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`8089a26fd974ca7a1f30276d3d8492ab266ab15af581642dfe8aa162e0c1c823`
BLAKE2b-256 checksum How to use checksums	`ebdcad025c1ee131eba60c69f4dd5779b18fcf1e6b21a343e2162a84d5d133c7`
Upload date	Aug 7, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	Yes
Uploaded via	`twine/7.0.0 CPython/3.13.14`

Provenance

Identity

Publishing platform: GitHub Actions
Publishing repository: github.com/facelessuser/soupsieve
Publishing commit: github.com/facelessuser/soupsieve/tree/78661a6e4f54e0bc3ec99f548e9fcd6787d1902c

Workflow

Publishing configuration: github.com/facelessuser/soupsieve/blob/78661a6e4f54e0bc3ec99f548e9fcd6787d1902c/.github/workflows/deploy.yml
Publishing logs: github.com/facelessuser/soupsieve/actions/runs/31136383569/attempts/1

Artifact

Subject: soupsieve-2.9.2-py3-none-any.whl
SHA-256 checksum: 8089a26fd974ca7a1f30276d3d8492ab266ab15af581642dfe8aa162e0c1c823 Verifying attestations