urllib3 VS pycurl

Compare urllib3 vs pycurl and see what are their differences.

urllib3

urllib3 is a user-friendly HTTP client library for Python (by urllib3)
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urllib3 pycurl
21 4
3,664 1,046
0.9% 0.9%
9.1 7.7
12 days ago about 1 month ago
Python Python
MIT License GNU Lesser General Public License v3.0 only
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.

urllib3

Posts with mentions or reviews of urllib3. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-02.
  • Python Cloudflare Workers
    4 projects | news.ycombinator.com | 2 Apr 2024
    As opposed to what the article says, urllib3 now has experimental support for browser as of Jan 30th.

    Source: https://github.com/urllib3/urllib3/releases/tag/2.2.0

  • Revived the promise made six years ago for Requests 3
    4 projects | dev.to | 2 Apr 2024
    Then, I tried to get a firm grip on urllib3 base code, contributing this and there until I was ready to kick things up with a proof of concept that would have put urllib3 far ahead. Without any breaking changes. I was delusional. This was a bit of a shock, but six months passed between my initial kick off and my formal give up, and here's why in a nutshell:
  • Python HTTP library 'urllib3' now works in the browser
    8 projects | news.ycombinator.com | 30 Jan 2024
    Oh wow, thanks for this story! Would love to hear more if you have time :) Good luck with testing it out.

    Note that we found an issue w/ emitting an InsecureRequestWarning by default. The request is perfectly secure, it's just we aren't telling the ConnectionPool that information (see: https://github.com/urllib3/urllib3/issues/3331)

  • Bounties Damage Open Source Projects
    4 projects | news.ycombinator.com | 17 Sep 2023
    I've had a good experience doing a couple of bug fix bounties for urllib3 https://github.com/urllib3/urllib3/issues . I'd be interested in how the maintainers how found running the bug bounty and if it's given them more useful fixes or if it just adds more noise to deal with
  • Help: Installing AI LLM for first time and having SSL issue
    1 project | /r/commandline | 6 May 2023
    ImportError: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with LibreSSL 2.8.3. See: https://github.com/urllib3/urllib3/issues/2168
  • ReadTheDocs Sphinx theme urllib3 related build errors
    2 projects | /r/technicalwriting | 5 May 2023
    > Could not import extension sphinx.builders.linkcheck (exception: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with OpenSSL 1.0.2n 7 Dec 2017. See: https://github.com/urllib3/urllib3/issues/2168)
  • Trying to install autoscan from https://github.com/NiNiyas/autoscan and stuck with no idea what the problem is.
    6 projects | /r/PleX | 5 Mar 2023
    This error is coming from Python, it's telling us Python is failing to import the urllib3 library, these lines here are important:
  • Requests Library in Python
    2 projects | dev.to | 18 Jul 2022
    Requests allows you to send HTTP/1.1 requests extremely easily. There’s no need to manually add query strings to your URLs, or to form-encode your POST data. Keep-alive and HTTP connection pooling are 100% automatic, thanks to urllib3.
  • GitHub - Spacewalkio/Goenv: 🐺 Manage Your Applications Go Environment.
    5 projects | /r/golang | 12 Jul 2022
    Judging projects based on stars is really immature. for example everyone knows requests https://github.com/psf/requests the python package that is used in every python project out there. it has 47k star too WOW. but the thing that less people know is urllib3. https://github.com/urllib3/urllib3. it has only 3k stars. It basically does the heavy lifting for requests!!
  • This Week In Python
    5 projects | dev.to | 23 Jun 2022
    urllib3 – Python HTTP library with thread-safe connection pooling, file post support, user friendly, and more

pycurl

Posts with mentions or reviews of pycurl. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-29.
  • Libcurl
    3 projects | news.ycombinator.com | 29 Jan 2024
    You can probably get pretty far with the generated C code, then look up the same curl options in the Python bindings:

    https://github.com/pycurl/pycurl

  • SSL backend error when using OpenSSL
    1 project | /r/codehunter | 12 Apr 2022
    ImportError: pycurl: libcurl link-time ssl backend (openssl) is different from compile-time ssl backend (none/other) I read some documentation saying that "To fix this, you need to tell setup.py what SSL backend is used" (source) although I am not sure how to do this since I installed pycurl using pip.
  • HTTP Calls in Python Without requests or Other External Dependencies
    6 projects | dev.to | 7 Mar 2021
    pycurl is less popular as a Python library, but interfaces with the well-known libcurl.
  • Using NGINX to put Geoserver HTTPS
    1 project | dev.to | 4 Mar 2021
    I tried the geoserver-rest library which has a pycurl dependency for testing the geoserver REST operation. I found that it was not working with the https geoserver URL but working fine with the python request library. So, only for the REST operation, I used the geoserver URL without proxy as http:localhost:8080/geoserver. If you found, why it is not working on pycurl please let me know 😜.

What are some alternatives?

When comparing urllib3 and pycurl you can also consider the following projects:

requests - A simple, yet elegant, HTTP library.

CPython - The Python programming language

httplib2 - Small, fast HTTP client library for Python. Features persistent connections, cache, and Google App Engine support. Originally written by Joe Gregorio, now supported by community.

attrs - Python Classes Without Boilerplate

grequests - Requests + Gevent = <3

pysimpleurl

Uplink - A Declarative HTTP Client for Python

requests-futures - Asynchronous Python HTTP Requests for Humans using Futures

Doublify API Toolkit

Bearer Python

kiss-headers - Python package for HTTP/1.1 style headers. Parse headers to objects. Most advanced available structure for http headers.

treq - Python requests like API built on top of Twisted's HTTP client.