pip works with CPython versions 2.6, 2.7, 3.1, 3.2, 3.3, 3.4 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.
To install or upgrade pip, securely download get-pip.py. [1]
Then run the following (which may require administrator access):
python get-pip.py
If setuptools (or distribute) is not already installed, get-pip.py will install setuptools for you. [2]
To upgrade an existing setuptools (or distribute), run pip install -U setuptools [3]
To enable the use of pip from the command line, ensure the Scripts subdirectory of your Python installation is available on the system PATH. (This is not done automatically.)
On Linux, pip will generally be available for the system install of python using the system package manager, although often the latest version will be unavailable.
On Debian and Ubuntu:
sudo apt-get install python-pip
On Fedora:
sudo yum install python-pip
| [1] | “Secure” in this context means using a modern browser or a tool like curl that verifies SSL certificates when downloading from https URLs. |
| [2] | Beginning with pip v1.5.1, get-pip.py stopped requiring setuptools to be installed first. |
| [3] | Although using pip install --upgrade setuptools to upgrade from distribute to setuptools works in isolation, it’s possible to get “ImportError: No module named setuptools” when using pip<1.4 to upgrade a package that depends on setuptools or distribute. See here for details. |
? Copyright 2008-2014, PyPA. Last updated on Jun 25, 2014.
原文：http://www.cnblogs.com/highroom/p/168bbc6cbab2a825c58d10d21b31d6b0.html