skip to navigation
skip to content

pycares 2.1.1

Python interface for c-ares

pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously.

Bundled c-ares

pycares currently bundles c-ares and as of pycares 1.0.0 this is a strong requirement. Upstream c-ares is not willing to apply a patch adding TTL support. I did apply the patch to the bundled c-ares, but unfortunately it breaks the ABI, so attempting to use a system provided c-ares is not possible.




Mac OSX:

(XCode needs to be installed)
export ARCHFLAGS="-arch x86_64"

Microsoft Windows (with Visual Studio 2008, 2010, 2015 or the Windows SDK):


Running the test suite

There are several ways of running the test ruite:

  • Run the test with the current Python interpreter:

    From the toplevel directory, run: python tests/

  • Use Tox to run the test suite in several virtualenvs with several interpreters

    From the toplevel directory, run: tox -e py27,py33,py34,py35 this will run the test suite on Python 2.7, 3.3, 3.4 and 3.5 (you’ll need to have them installed beforehand)


Saúl Ibarra Corretgé <>


Unless stated otherwise on-file pycares uses the MIT license, check LICENSE file.

Python versions

Python >= 2.7 and >= 3.3 are supported. Other older versions might work too, but they are not actively tested. Both CPython and PyPy (tested with version 5) are supported.


If you’d like to contribute, fork the project, make a patch and send a pull request. Have a look at the surrounding code and please, make yours look alike :-)

File Type Py Version Uploaded on Size
pycares-2.1.1-cp27-cp27m-win32.whl (md5) Python Wheel cp27 2016-10-03 45KB
pycares-2.1.1-cp27-cp27m-win_amd64.whl (md5) Python Wheel cp27 2016-10-03 54KB
pycares-2.1.1-cp33-cp33m-win32.whl (md5) Python Wheel cp33 2016-10-03 46KB
pycares-2.1.1-cp33-cp33m-win_amd64.whl (md5) Python Wheel cp33 2016-10-03 54KB
pycares-2.1.1-cp34-cp34m-win32.whl (md5) Python Wheel cp34 2016-10-03 46KB
pycares-2.1.1-cp34-cp34m-win_amd64.whl (md5) Python Wheel cp34 2016-10-03 54KB
pycares-2.1.1-cp35-cp35m-win32.whl (md5) Python Wheel cp35 2016-10-03 47KB
pycares-2.1.1-cp35-cp35m-win_amd64.whl (md5) Python Wheel cp35 2016-10-03 59KB
pycares-2.1.1.tar.gz (md5) Source 2016-10-03 221KB