PycURL - Python interface to libcurl

Related tags

HTTP Clientspycurl

PycURL -- A Python Interface To The cURL library

PycURL is a Python interface to libcurl, the multiprotocol file transfer library. Similarly to the urllib Python module, PycURL can be used to fetch objects identified by a URL from a Python program. Beyond simple fetches however PycURL exposes most of the functionality of libcurl, including:

  • Speed - libcurl is very fast and PycURL, being a thin wrapper above libcurl, is very fast as well. PycURL was benchmarked to be several times faster than requests.
  • Features including multiple protocol support, SSL, authentication and proxy options. PycURL supports most of libcurl's callbacks.
  • Multi and share interfaces.
  • Sockets used for network operations, permitting integration of PycURL into the application's I/O loop (e.g., using Tornado).


  • Python 3.5-3.8.
  • libcurl 7.19.0 or better.


Download source and binary distributions from PyPI or Bintray. Binary wheels are now available for 32 and 64 bit Windows versions.

Please see INSTALL.rst for installation instructions. If installing from a Git checkout, please follow instruction in the Git Checkout section of INSTALL.rst.


Documentation for the most recent PycURL release is available on PycURL website.

Documentation for the development version of PycURL is available here.

To build documentation from source, run make docs. Building documentation requires Sphinx to be installed, as well as pycurl extension module built as docstrings are extracted from it. Built documentation is stored in build/doc subdirectory.


For support questions please use curl-and-python mailing list. Mailing list archives are available for your perusal as well.

Although not an official support venue, Stack Overflow has been popular with some PycURL users.

Bugs can be reported via GitHub. Please use GitHub only for bug reports and direct questions to our mailing list instead.

Automated Tests

PycURL comes with an automated test suite. To run the tests, execute:

make test

The suite depends on packages nose and bottle, as well as vsftpd.

Some tests use vsftpd configured to accept anonymous uploads. These tests are not run by default. As configured, vsftpd will allow reads and writes to anything the user running the tests has read and write access. To run vsftpd tests you must explicitly set PYCURL_VSFTPD_PATH variable like so:

# use vsftpd in PATH
export PYCURL_VSFTPD_PATH=vsftpd

# specify full path to vsftpd
export PYCURL_VSFTPD_PATH=/usr/local/libexec/vsftpd

Test Matrix

The test matrix is a separate framework that runs tests on more esoteric configurations. It supports:

  • Testing against Python 2.4, which bottle does not support.
  • Testing against Python compiled without threads, which requires an out of process test server.
  • Testing against locally compiled libcurl with arbitrary options.

To use the test matrix, first start the test server from Python 2.5+ by running:

python -m tests.appmanager

Then in a different shell, and preferably in a separate user account, run the test matrix:

# run ftp tests, etc.
export PYCURL_VSFTPD_PATH=vsftpd
# create a new work directory, preferably not under pycurl tree
mkdir testmatrix
cd testmatrix
# run the matrix specifying absolute path
python /path/to/pycurl/tests/

The test matrix will download, build and install supported Python versions and supported libcurl versions, then run pycurl tests against each combination. To see what the combinations are, look in tests/


For smaller changes:

  1. Fork the repository on Github.
  2. Create a branch off master.
  3. Make your changes.
  4. Write a test which shows that the bug was fixed or that the feature works as expected.
  5. Send a pull request.
  6. Check back after 10-15 minutes to see if tests passed on Travis CI. PycURL supports old Python and libcurl releases and their support is tested on Travis.

For larger changes:

  1. Join the mailing list.
  2. Discuss your proposal on the mailing list.
  3. When consensus is reached, implement it as described above.

Please contribute binary distributions for your system to the downloads repository.


Copyright (C) 2001-2008 by Kjetil Jacobsen <kjetilja at>
Copyright (C) 2001-2008 by Markus F.X.J. Oberhumer <markus at>
Copyright (C) 2013-2020 by Oleg Pudeyev <oleg at>

All rights reserved.

PycURL is dual licensed under the LGPL and an MIT/X derivative license
based on the cURL license.  A full copy of the LGPL license is included
in the file COPYING-LGPL.  A full copy of the MIT/X derivative license is
included in the file COPYING-MIT.  You can redistribute and/or modify PycURL
according to the terms of either license.
Detects request smuggling via HTTP/2 downgrades.

h2rs Detects request smuggling via HTTP/2 downgrades. Requirements Python 3.x Python Modules base64 sys socket ssl certifi h2.connection arg

Ricardo Iramar dos Santos 89 Dec 22, 2022
šŸ’”Python package for HTTP/1.1 style headers. Parse headers to objects. Most advanced available structure for http headers.

HTTP Headers, the Complete Toolkit šŸ§° Object-oriented headers. Kind of structured headers. ā“ Why No matter if you are currently dealing with code usin

TAHRI Ahmed R. 103 Dec 02, 2022
A next generation HTTP client for Python. šŸ¦‹

HTTPX - A next-generation HTTP client for Python. HTTPX is a fully featured HTTP client for Python 3, which provides sync and async APIs, and support

Encode 9.8k Jan 05, 2023
Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Screaming-fast Python 3.5+ HTTP toolkit integrated with pipelining HTTP server based on uvloop and picohttpparser.

Paweł Piotr Przeradowski 8.6k Jan 04, 2023
Pretty fast mass-dmer with multiple tokens support made with python requests

mass-dm-requests - Little preview of the Logger and the Spammer Features Logging User IDS Sending DMs (Embeds are supported) to the logged IDs Includi 14 Nov 18, 2022
HTTP Request & Response Service, written in Python + Flask.

httpbin(1): HTTP Request & Response Service

Postman Inc. 11.3k Jan 01, 2023
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.

Introduction httplib2 is a comprehensive HTTP client library, supports many features left out of other HTTP libraries. HTTP and HTTPS HTTP

457 Dec 10, 2022
Aiohttp-openmetrics - OpenMetrics endpoint provider for aiohttp

aiohttp-openmetrics This project contains a simple middleware and /metrics route

Jelmer Vernooij 1 Dec 15, 2022
Python HTTP library with thread-safe connection pooling, file post support, user friendly, and more.

urllib3 is a powerful, user-friendly HTTP client for Python. Much of the Python ecosystem already uses urllib3 and you should too. urllib3 brings many

urllib3 3.2k Jan 02, 2023
EasyRequests is a minimalistic HTTP-Request Library that wraps aiohttp and asyncio in a small package that allows for sequential, parallel or even single requests

EasyRequests EasyRequests is a minimalistic HTTP-Request Library that wraps aiohttp and asyncio in a small package that allows for sequential, paralle

Avi 1 Jan 27, 2022
Single-file replacement for python-requests

mureq mureq is a single-file, zero-dependency replacement for python-requests, intended to be vendored in-tree by Linux systems software and other lig

Shivaram Lingamneni 267 Dec 28, 2022
Asynchronous Python HTTP Requests for Humans using Futures

Asynchronous Python HTTP Requests for Humans Small add-on for the python requests http library. Makes use of python 3.2's concurrent.futures or the ba

Ross McFarland 2k Dec 30, 2022
A simple, yet elegant HTTP library.

Requests Requests is a simple, yet elegant HTTP library. import requests r = requests.get('', auth=('user', 'pass')

Python Software Foundation 48.8k Jan 05, 2023
Bot que responde automƔticamente as perguntas do giga unitel

Gigabot+ Bot que responde automĆ”ticamente as perguntas do giga unitel LINK DOWNLOAD: Gigabot.exe O script pode apresentar alguns erros, pois nĆ£o tive

Joaquim Roque 20 Jul 16, 2021
As easy as /aitch-tee-tee-pie/ šŸ„§ Modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

HTTPie: human-friendly CLI HTTP client for the API era HTTPie (pronounced aitch-tee-tee-pie) is a command-line HTTP client. Its goal is to make CLI in

HTTPie 25.4k Jan 01, 2023
Fast HTTP parser

httptools is a Python binding for the nodejs HTTP parser. The package is available on PyPI: pip install httptools. APIs httptools contains two classes

magicstack 1.1k Jan 07, 2023
Get the HTTP code of websites along with a cute cat picture

Cat Requests What is this? Cat requests allows you to both get the HTTP response code of the website you wish and it displays it to your screen as a c

Oakchris1955 3 Feb 27, 2022
Probe and discover HTTP pathname using brute-force methodology and filtered by specific word or 2 words at once

pathprober Probe and discover HTTP pathname using brute-force methodology and filtered by specific word or 2 words at once. Purpose Brute-forcing webs

NFA 41 Jul 06, 2022
T-Reqs: A grammar-based HTTP Fuzzer

T-Reqs HTTP Fuzzer T-Reqs (Two Requests) is a grammar-based HTTP Fuzzer written as a part of the paper titled "T-Reqs: HTTP Request Smuggling with Dif

Bahruz Jabiyev 207 Dec 06, 2022
HackerNews digest using GitHub actions

HackerNews Digest This script makes use of GitHub actions to send daily newsletters with the top 10 posts from HackerNews of the previous day. How to

Rajkumar S 3 Jan 19, 2022