lxml VS rust-cpython

Compare lxml vs rust-cpython and see what are their differences.


The lxml XML toolkit for Python (by lxml)


Rust <-> Python bindings (by dgrunwald)
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lxml rust-cpython
17 15
2,311 1,710
1.9% -
7.5 2.1
23 days ago 3 months ago
Python Rust
GNU General Public License v3.0 or later MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of lxml. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-01.
  • 8 Most Popular Python HTML Web Scraping Packages with Benchmarks
    4 projects | dev.to | 1 Feb 2023
  • 13 ways to scrape any public data from any website
    6 projects | dev.to | 7 Oct 2022
    Parsel is a library build to extract data from XML/HTML documents with XPath and CSS selectors support, and could be combined with regular expressions. It's usees lxml parser under the hood by default.
  • lazy and fast .mpd file parser - for video streaming
    2 projects | reddit.com/r/Python | 13 Aug 2022
    So, now that I no longer work in that industry, and I had some free time, I created a lazy parsing package using lxml instead of the xml parser in the standard library, which can help people who want to have a python only parsing solution.
  • There is framework for everything.
    107 projects | reddit.com/r/ProgrammerHumor | 4 Aug 2022
  • Parsing XML file deletes whitespace. How to avoid it?
    2 projects | reddit.com/r/learnpython | 2 Apr 2022
    I got curious about this now so I did some tests on my own, and it appears that the XML parser implementation in Python does indeed strip all newline characters from attributes. Whether this is according to XML standard I do not know; I also briefly tried an alternative XML implementation for Python and it behaves the same, so I would assume that this is standard behavior, but I'm not knowledgable enough about XML to say for certain.
  • Use case for ETL over ELT?
    2 projects | reddit.com/r/dataengineering | 27 Mar 2022
    I use lxml for the XML parsing and pyodbc as the ODBC library. We have a small team so I just keep it as simple as possible: 1. A cursor yields the XML documents from a SQL query as a stream 2. A generator function parses the XML document and yields the rows (you could parallelize this step) 3. Stream each of the resulting rows to a single CSV file 4. Scoop up the resulting CSV file into the target database (usually with the DB engine's loader; bulk insert isn't so fast over ODBC) It ends up being a straight forward, low-overhead approach.
  • How do i go about building a vidoe conferencing app?
    10 projects | reddit.com/r/rust | 20 Aug 2021
    Generally, I'm already using Python to glue together things like OpenCV or libxml, which do the heavy-lifting, and taking advantage of how things like Qt's QImage release Python's Global Interpreter Lock, allowing me to load and process images on a background thread, so the Python code itself is usually already I/O-bound, but yes. If the Python code would become a bottleneck, it helps with that too.
  • Big brained meme I created
    2 projects | reddit.com/r/ProgrammerHumor | 25 Jul 2021
  • Where to start: Learning Web-scraping
    2 projects | reddit.com/r/learnpython | 26 Jun 2021
    lxml is an XML parser however, it also supports HTML parsing. It's blazing fast and supports XPath. I think it isn't as beginner friendly to use, though it has detailed documentation. It works less well with heavily broken HTML documents and the encoding detection isn't as good as the one of BS4.
  • Python is better than C they said
    4 projects | reddit.com/r/ProgrammerHumor | 6 Jun 2021
    According to lxml benchmarking docs, Python’s built in xml parser wouldn’t behave that bad either: https://github.com/lxml/lxml/blob/master/doc/performance.txt


Posts with mentions or reviews of rust-cpython. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-05-10.
  • How does Rust Python ffi work?
    3 projects | reddit.com/r/rust | 10 May 2022
    I've never used pyo3, just cpython, but the latter at least let me do things like:
  • Hey, i begin my journey into Rust !
    7 projects | reddit.com/r/rust | 16 Feb 2022
    For interoperating with Python, check out PyO3 or rust-cpython. (More generally, see Rust Interop and Are We Extending Yet?)
  • Should I learn Rust coming from Python?
    2 projects | reddit.com/r/rust | 27 Nov 2021
    You probably should learn Rust. Aside from the process of learning new and different languages making you a better programmer, rust-cpython, PyO3, or Interoptopus make it easy to expose Python APIs from your Rust code. (eg. So it's easy to compile the same codebase as both a Python module and a WebAssembly module.)
  • What do you NOT like about Rust?
    18 projects | reddit.com/r/rust | 21 Nov 2021
    Have you looked into abi_stable, flapigen, interoptopus, cbindgen, PyO3, or rust-cpython?
  • Strengths and applications of Rust
    5 projects | reddit.com/r/rust | 6 Nov 2021
    Personally, I'm not willing to compromise on my GUI look and feel, so I use PyQt or PySide to write my GUIs against the QWidget API (I'm a KDE user and Python is the only language with mature memory-safe bindings to Qt) and, if the project can be structured with a frontend-backend separation, I use rust-cpython or PyO3 to write a backend in Rust that the Python frontend can import. Sort of using Python/Rust as a QWidget analogue to the QML/C++ architecture promoted for Qt Quick. (Which I don't use because it's still too incomplete on Kubuntu 20.04 LTS.)
  • From Python to Rust, should I?
    3 projects | reddit.com/r/rust | 2 Nov 2021
    also, check out rust-cpython, PyO3, and maturin, among other things. They're really nice options for using Rust for its strengths and Python for its strengths within the same project.
  • How we built our Python Client that's mostly Rust
    4 projects | dev.to | 27 Aug 2021
    This section uses flapigen to expand the foreign_class macro into many cpython functions as an extension module, and cargo compiles it as a cdylib. If you want to see what that looks like, install cargo-expand and run cargo expand. You'll get a lot of generated rust code.
  • How do i go about building a vidoe conferencing app?
    10 projects | reddit.com/r/rust | 20 Aug 2021
    For Python specifically, In addition to using rust-cpython or PyO3, maturin makes it really comfortable to build, package, and publish Rust code into Python packages and, if your niche doesn't quite fit, there's setuptools-python which might do it.
  • Does rust have function works like eval?
    9 projects | reddit.com/r/rust | 19 Aug 2021
    hlua or rlua are what you want for Lua, rust-cpython or PyO3 for Python, rutie for Ruby, and possibly deno_core for JavaScript.
  • Python extensions in Rust
    4 projects | reddit.com/r/rust | 13 Aug 2021
    I've done it using cpython and pyo3 for performance in scientific computing. Compared to C++ I found using Rust got rid of most debugging across the FFI boundary. Eliminating memory errors and providing clear compilation errors when multithreading made more a difference for me than type safety, though it's not unrelated.

What are some alternatives?

When comparing lxml and rust-cpython you can also consider the following projects:

xmltodict - Python module that makes working with XML feel like you are working with JSON

PyO3 - Rust bindings for the Python interpreter

html5lib - Standards-compliant library for parsing and serializing HTML documents and fragments in Python

untangle - Converts XML to Python objects

selectolax - Python binding to Modest and Lexbor engines (fast HTML5 parser with CSS selectors).

pyquery - A jquery-like library for python

bleach - Bleach is an allowed-list-based HTML sanitizing library that escapes or strips markup and attributes

gazpacho - 🥫 The simple, fast, and modern web scraping library

xhtml2pdf - A library for converting HTML into PDFs using ReportLab

rustpy - Rust + Python = ????

Rustup - The Rust toolchain installer