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.. _installation:
Installation
============
Requirements
------------
Python 2.6 or later.
Installation
------------
Many free operating system distributions have dnspython packaged for
you, so you should check there first.
The next easiest option is to use ``pip``::
pip install dnspython
If ``pip`` is not available, you can download the latest zip file from
`PyPI <https://pypi.python.org/pypi/dnspython/>`_, unzip it.
On a UNIX-like system, you then run::
sudo python setup.py install
while on a Windows system you would run::
python setup.py install
Finally, you have the option of cloning the dnspython source from github
and building it::
git clone https://github.com/rthalley/dnspython.git
And then run ``setup.py`` as above.
Please be aware that the master branch of dnspython on github is under
active development and may not always be stable.
Optional Modules
----------------
The following modules are optional, but recommended for full functionality.
If ``pycryptodome`` is installed, then dnspython will be able to do low-level
DNSSEC RSA and DSA signature validation.
If ``ecdsa`` is installed, then Elliptic Curve signature algorithms will
be available for low-level DNSSEC signature validation.
If ``idna`` is installed, then IDNA 2008 will be available.
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