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.. _`Installation`:
Installation
============
Python & OS Support
-------------------
pip works with CPython versions 2.6, 2.7, 3.1, 3.2, 3.3 and also pypy.
pip works on Unix/Linux, OS X, and Windows.
.. note::
Python 2.5 was supported through v1.3.1, and Python 2.4 was supported through v1.1.
.. _`get-pip`:
Install or Upgrade pip
----------------------
Beginning with pip v1.5.1, pip can execute all of it's commands, and install
from :ref:`wheels <Building and Installing Wheels>`, without having
`setuptools`_ installed. `setuptools`_ is required when installing from Source
Distributions (i.e the `*.tar.gz` or `*.zip` files from PyPI).
To install pip, securely download `get-pip.py <https://raw.github.com/pypa/pip/master/contrib/get-pip.py>`_. [2]_
Then run the following (which may require administrator access), to install (or upgrade to) the
latest version of pip::
$ python get-pip.py
Install or Upgrade Setuptools
-----------------------------
pip requires `setuptools`_ when installing Source Distributions, not when installing from wheels.
To install setuptools
::
$ pip install setuptools
To upgrade setuptools:
::
$ pip install --upgrade setuptools
.. note::
If you have distribute, this will upgrade to you distribute-0.7.X, which
is just a wrapper, that depends on setuptools. The end result will be that
you have distribute-0.7.X (which does nothing) *and* the latest setuptools
installed. If you'd prefer not to end up with the distribute wrapper,
then instead, run ``$ pip uninstall distribute``, then ``$ pip install
setuptools``.
Using Package Managers
----------------------
On Linux, pip will generally be available for the system install of python using the system package manager,
although often the latest version lags behind. Installing `python-pip` will also install `python-setuptools`.
On Debian and Ubuntu::
$ sudo apt-get install python-pip
On Fedora::
$ sudo yum install python-pip
.. [1] As of pip 1.4, pip started requiring `setuptools`_, not `distribute`_
(a fork of setuptools). `setuptools`_ and `distribute`_ are now merged
back together as "setuptools".
.. [2] "Secure" in this context means using a modern browser or a
tool like `curl` that verifies SSL certificates when downloading from
https URLs.
.. _setuptools: https://pypi.python.org/pypi/setuptools
.. _distribute: https://pypi.python.org/pypi/distribute
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