{"id":332,"library":"soupsieve","title":"SoupSieve: A Modern CSS Selector Implementation for Beautiful Soup","description":"SoupSieve is a modern CSS selector implementation for Beautiful Soup, currently at version 2.8.3. It is actively maintained and follows a regular release cadence, with recent updates addressing various fixes and improvements.","status":"active","version":"2.8.3","language":"python","source_language":"en","source_url":"https://github.com/facelessuser/soupsieve","tags":["CSS selectors","Beautiful Soup","HTML parsing","Python library","web scraping"],"install":[{"cmd":"pip install soupsieve","lang":"bash","label":"Install SoupSieve"}],"dependencies":[{"reason":"SoupSieve is designed to work seamlessly with Beautiful Soup, enhancing its CSS selector capabilities.","package":"beautifulsoup4"}],"imports":[{"note":"Ensure you import SoupSieve directly from the 'soupsieve' package to access its functionalities.","symbol":"SoupSieve","correct":"from soupsieve import SoupSieve"}],"quickstart":{"code":"from soupsieve import SoupSieve\n\n# Example usage of SoupSieve\nhtml = '

Hello, World!

'\nsoup = SoupSieve(html)\nelements = soup.select('.content')\nprint(elements[0].text) # Output: Hello, World!","lang":"python","description":"A simple example demonstrating how to use SoupSieve to parse HTML and select elements using CSS selectors."},"warnings":[{"fix":"Upgrade your Python environment to version 3.9 or later to ensure compatibility.","message":"SoupSieve 2.8 drops support for Python 3.8 and earlier versions.","severity":"breaking","affected_versions":"2.8"},{"fix":"Avoid using ':in-range' and ':out-of-range' pseudo-classes in your CSS selectors.","message":"The ':in-range' and ':out-of-range' pseudo-classes are deprecated in SoupSieve 2.8.","severity":"deprecated","affected_versions":"2.8"},{"fix":"Ensure `beautifulsoup4` is installed. You can install it using `pip install beautifulsoup4`.","message":"The `soupsieve` library requires `beautifulsoup4` as a dependency. `ModuleNotFoundError: No module named 'bs4'` indicates that `beautifulsoup4` is not installed in the environment.","severity":"breaking","affected_versions":"2.8"},{"fix":"Install the 'beautifulsoup4' package using 'pip install beautifulsoup4'.","message":"SoupSieve requires Beautiful Soup 4 ('bs4') as a dependency. The module 'bs4' was not found.","severity":"breaking","affected_versions":"2.8"}],"env_vars":null,"last_verified":"2026-05-12T13:07:30.382Z","next_check":"2026-06-26T00:00:00.000Z","problems":[{"fix":"Install `soupsieve` using pip: `pip install soupsieve` (or `pip install beautifulsoup4` which includes it as a dependency).","cause":"The 'soupsieve' library is not installed in the current Python environment. It is a dependency for `beautifulsoup4`'s CSS selector features.","error":"ModuleNotFoundError: No module named 'soupsieve'"},{"fix":"Instead of importing, use the `select()` method directly on a `BeautifulSoup` object, e.g., `soup.select('css_selector')`.","cause":"Users are attempting to directly import the `select` function (or other internal components) from the `soupsieve` library, which is not exposed for public use. `soupsieve` is an internal dependency of `beautifulsoup4`.","error":"ImportError: cannot import name 'select' from 'soupsieve'"},{"fix":"Review and correct the CSS selector string to conform to valid CSS selector syntax (e.g., `[attr=\"value\"]` instead of `[attr=value]`).","cause":"The CSS selector string provided to `BeautifulSoup.select()` (which uses `soupsieve` internally) contains incorrect or invalid syntax, specifically a malformed attribute selector.","error":"soupsieve.util.SelectorSyntaxError: Malformed attribute selector"}],"ecosystem":"pypi","meta_description":null,"install_score":0,"install_tag":"stale","quickstart_score":0,"quickstart_tag":"stale","pypi_latest":null,"install_checks":{"last_tested":"2026-05-12","tag":"stale","tag_description":"widespread failures or data too old to trust","results":[{"runtime":"python:3.10-alpine","python_version":"3.10","os_libc":"alpine (musl)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.10-slim","python_version":"3.10","os_libc":"slim (glibc)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.11-alpine","python_version":"3.11","os_libc":"alpine (musl)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.11-slim","python_version":"3.11","os_libc":"slim (glibc)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.12-alpine","python_version":"3.12","os_libc":"alpine (musl)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.12-slim","python_version":"3.12","os_libc":"slim (glibc)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.13-alpine","python_version":"3.13","os_libc":"alpine (musl)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.13-slim","python_version":"3.13","os_libc":"slim (glibc)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.9-alpine","python_version":"3.9","os_libc":"alpine (musl)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null},{"runtime":"python:3.9-slim","python_version":"3.9","os_libc":"slim (glibc)","variant":"default","exit_code":1,"wheel_type":null,"failure_reason":null,"install_time_s":null,"import_time_s":null,"mem_mb":null,"disk_size":null}]},"quickstart_checks":{"last_tested":"2026-04-23","tag":"stale","tag_description":"widespread failures or data too old to trust","results":[{"runtime":"python:3.10-alpine","exit_code":1},{"runtime":"python:3.10-slim","exit_code":1},{"runtime":"python:3.11-alpine","exit_code":1},{"runtime":"python:3.11-slim","exit_code":1},{"runtime":"python:3.12-alpine","exit_code":1},{"runtime":"python:3.12-slim","exit_code":1},{"runtime":"python:3.13-alpine","exit_code":1},{"runtime":"python:3.13-slim","exit_code":1},{"runtime":"python:3.9-alpine","exit_code":1},{"runtime":"python:3.9-slim","exit_code":1}]}}