attrs VS Werkzeug

Compare attrs vs Werkzeug and see what are their differences.

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attrs Werkzeug
11 11
5,065 6,535
0.7% 0.4%
9.2 8.5
13 days ago 16 days ago
Python Python
MIT License BSD 3-clause "New" or "Revised" 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.

attrs

Posts with mentions or reviews of attrs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-08-29.
  • Litestar 2.0
    4 projects | /r/Python | 29 Aug 2023
    Full support for validation and serialisation of attrs classes and msgspec Structs. Where previously only Pydantic models and types where supported, you can now mix and match any of these three libraries. In addition to this, adding support for another modelling library has been greatly simplified with the new plugin architecture
  • Ask HN: How can I get better at writing production-level Python?
    9 projects | news.ycombinator.com | 18 Jul 2023
  • Starlite updates March '22 | 2.0 is coming
    14 projects | /r/Python | 26 Mar 2023
    Pydantic is by far not the only library of its kind, with prominent members of the same class being attrs, cattrs or even plain dataclasses for some use cases.
  • Data Classification: Does Python still have a need for class without dataclass?
    2 projects | news.ycombinator.com | 14 Feb 2023
    Anything requiring e.g. setattr, getattr, delattr? Without looking far,

    https://github.com/python-attrs/attrs/blob/main/src/attr/_ma...

  • What new Python features are the most useful for you?
    2 projects | news.ycombinator.com | 19 Jan 2023
  • Why you should use Data Classes in Python
    2 projects | /r/Python | 16 Sep 2022
  • Python Built-In Functions to Know
    2 projects | news.ycombinator.com | 10 Mar 2022
    I was looking for an example of using locals() to "fill a data class from kwargs" or something similar to that. The example here doesn't use locals().

    That aside, I generally wouldn't use the kwargs approach shown in this example either. I'd use [dataclasses](https://docs.python.org/3/library/dataclasses.html ) or [attrs](https://www.attrs.org/) instead.

  • Building a Micro Business: What Services I Pay For
    16 projects | dev.to | 30 Dec 2021
    hynek: developer of attrs
  • Soap and REST at Odds (2017)
    1 project | news.ycombinator.com | 3 Aug 2021
    I continue to be surprised how easy it can be to consume a SOAP API with the right client libraries. Such as https://docs.python-zeep.org/en/master/ for Python. Now that's not to say it will always work, you can design a terrible API with any mechanism, no SOAP or REST client will help you if the other end has desided to succumb to madness and done something like turn their entire API into just "two endpoints" and driven by the payload content you post to the inbound endpoint, and you have to sit there polling the outbound endpoint with the inbound endpoints response ID because to find out what the eventual response is...

    But horror story aside, consuming a decent SOAP endpoint with a good client library can be practically magical.

    Between attrs (https://www.attrs.org/), cattrs (https://cattrs.readthedocs.io/), and the aforementioned zeep soap client I've got a serialisation pipeline from soap endpoint into an attrs dataclass with type hints and basic type validation down to a snippet so small it fits right here (type hints removed to minimise size).

      from zeep import helpers
  • PEP 661 -- Sentinel Values
    6 projects | /r/Python | 6 Jun 2021
    attrs has at least two.

Werkzeug

Posts with mentions or reviews of Werkzeug. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-07-03.
  • Flask like web framework under 100 lines of code
    2 projects | /r/Python | 3 Jul 2022
    The angle brackets on their own should be a sign that this is not the case, because that's not regular expression syntax. Flask uses werkzeug.routing instead. In fact, the module docs specifically call out the difference:
  • Django or Flask and why?
    6 projects | /r/Python | 5 Feb 2022
    Flask doesn’t support ASGI; neither does Werkzeug. The official guidance for running Flask with an ASGI server is to wrap it in middleware. The open GitHub issue for Werkzeug to support ASGI is #1322.
  • Creating a ‘ghost’ website?
    1 project | /r/flask | 21 Jan 2022
    But this may be a starting point: https://github.com/pallets/werkzeug/blob/main/src/werkzeug/middleware/http_proxy.py
  • I found (and fixed) a vulnerability in Python
    1 project | news.ycombinator.com | 26 Dec 2021
    > In this case, he initially presumed that the problem would be with Flask, Bottle, and Tornado still honoring a semi-colon as a separator in a uri

    Flask (or rather Werkzeug what it's based on) removed implicit semicolon support for URL 13 years ago: https://github.com/pallets/werkzeug/commit/0ea28bbc6f5f05eef...

  • PEP 661 -- Sentinel Values
    6 projects | /r/Python | 6 Jun 2021
    Werkzeug (library used by Flask) had a repr for its sentinel long before getting type annotations.
  • New Versions Released! Flask 2.0 with async
    2 projects | news.ycombinator.com | 12 May 2021
    Flask getting async support is a huge step for the asyncio web ecosystem in Python. I wonder how Flask's ASGI support will evolve in parallel with Quart[1] which bills itself as the ASGI version of Flask and is maintained by a member of the Pallets team. One of the maintainers of Werkzeug even recommended using Quart[2]

    [1] https://pgjones.gitlab.io/quart/

    [2] https://github.com/pallets/werkzeug/issues/1322#issuecomment...

  • Disable Color from the log that flaak produce
    1 project | /r/flask | 30 Apr 2021
    I’m pretty sure you need to establish a ‘werkzeug’ logger in a logging configuration and make sure that it has a handler for its effective level. But that’s just what I got from reading the source code. I could very well be wrong
  • logging: how to modify debug messages
    1 project | /r/flask | 2 Feb 2021
    You're not able to change the loglevel with werkzeug. It's hardcoded to info: https://github.com/pallets/werkzeug/blob/72b2e48e7d44927b1b7d6b2f940d0691230de893/src/werkzeug/serving.py#L388
  • 15x speedup for flask/werkzeug form multipart file upload with bytes.find() and bytes.rindex()
    2 projects | /r/Python | 31 Jan 2021
    The PRs are this initial one and this update. Also note this issue - almost 5 years to close :o.

What are some alternatives?

When comparing attrs and Werkzeug you can also consider the following projects:

itsdangerous - Safely pass trusted data to untrusted environments and back.

gunicorn - gunicorn 'Green Unicorn' is a WSGI HTTP Server for UNIX, fast clients and sleepy applications.

transitions - A lightweight, object-oriented finite state machine implementation in Python with many extensions

waitress - Waitress - A WSGI server for Python 3

pluginbase - A simple but flexible plugin system for Python.

uwsgi - Official uWSGI docs, examples, tutorials, tips and tricks

Pychievements - The Python Achievements Framework!

bjoern - A screamingly fast Python 2/3 WSGI server written in C.

Throttler - 🔀⏳ Easy throttling with asyncio support

Paste - Paste is in maintenance mode. Please consider other options.

blinker - A fast Python in-process signal/event dispatching system.

flask - The Python micro framework for building web applications. [Moved to: https://github.com/pallets/flask]