MacPorts安装使用Python/pip

$ which python
/usr/bin/python

$ whereis python
/usr/bin/python

$ python

  Python 2.7.5 (default, Aug 25 2013, 00:04:04) 

  [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin

  Type "help", "copyright", "credits" or "license" for more information.

  >>> 

$ port search python | grep python27
dbus-python27 @0.84.0 (devel, python)
gnome-python27-extras @2.25.3 (gnome, python)
ice-python27 @3.4.2_3 (devel, python)
protobuf-python27 @2.4.1_1 (devel)
python27 @2.7.6 (lang)
python27-doc @2.7.2_1 (lang)
subversion-python27bindings @1.8.8 (devel, python)

$ port search python | grep pip
Lightweight pipelining: using Python functions as pipeline jobs.
py-pip @1.5.4 (python, www)
py-pipedream @0.2.0_1 (python)
python module for easy communication over pipes
Plumbum (Latin for lead, which was used to create pipes back in the day) is a small yet feature-rich library for shell script-like programs in Python.
py24-pipedream @0.2.0_1 (python)
python module for easy communication over pipes
py25-pip @1.3.1_1 (python, www)
Lightweight pipelining: using Python functions as pipeline jobs.
py26-pip @1.5.4 (python, www)
Lightweight pipelining: using Python functions as pipeline jobs.
py27-pip @1.5.4 (python, www)
Plumbum (Latin for lead, which was used to create pipes back in the day) is a small yet feature-rich library for shell script-like programs in Python.
py31-pip @1.5.4 (python, www)
Lightweight pipelining: using Python functions as pipeline jobs.
py32-pip @1.5.4 (python, www)
Lightweight pipelining: using Python functions as pipeline jobs.
py33-pip @1.5.4 (python, www)
Plumbum (Latin for lead, which was used to create pipes back in the day) is a small yet feature-rich library for shell script-like programs in Python.
py34-pip @1.5.4 (python, www)
Plumbum (Latin for lead, which was used to create pipes back in the day) is a small yet feature-rich library for shell script-like programs in Python.

$ sudo port install py27-pip
Password:
--->  Computing dependencies for py27-pip
--->  Cleaning py27-pip
--->  Scanning binaries for linking errors: 100.0%
--->  No broken files found.

$ which python
/usr/bin/python

$ man port
...
   select
     For a given group, selects a version to be the default by creating appropriate symbolic links.  For instance, python might be linked to python2.6.  Available select groups are installed as subdi-
     rectories of ${prefix}/etc/select/.  To list the available versions in a group, use --list.  To see which version is currently selected for a group, use --show.  To change the selected version for
     a group, use --set.

     For example:

           port select --list python
           port select --show gcc
           port select --set gcc mp-gcc44
...

$ port select --list python
Available versions for python:
    none (active)
    python25-apple
    python26-apple
    python27
    python27-apple

$ port select --set python python27
Selecting ‘python27‘ for ‘python‘ failed: could not create new link "/opt/local/bin/python" pointing to "/opt/local/bin/python2.7": permission denied

$ sudo port select --set python python27
Password:
Selecting ‘python27‘ for ‘python‘ succeeded. ‘python27‘ is now active.

$ port select --list python
Available versions for python:
    none
    python25-apple
    python26-apple
    python27 (active)
    python27-apple

$ which python
/opt/local/bin/python

$ python
Python 2.7.6 (default, Nov 18 2013, 15:12:51) 
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.2.79)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

$ port select --list pip
Available versions for pip:
    none (active)
    pip27

$ sudo port select --set pip pip27
Selecting ‘pip27‘ for ‘pip‘ succeeded. ‘pip27‘ is now active.

$ port select --list pip
Available versions for pip:
    none
    pip27 (active)

$ pip

Usage:   
  pip <command> [options]

Commands:
  install                     Install packages.
  uninstall                   Uninstall packages.
  freeze                      Output installed packages in requirements format.
  list                        List installed packages.
  show                        Show information about installed packages.
  search                      Search PyPI for packages.
  wheel                       Build wheels from your requirements.
  zip                         DEPRECATED. Zip individual packages.
  unzip                       DEPRECATED. Unzip individual packages.
  bundle                      DEPRECATED. Create pybundles.
  help                        Show help for commands.

General Options:
  -h, --help                  Show help.
  -v, --verbose               Give more output. Option is additive, and can be used up to 3 times.
  -V, --version               Show version and exit.
  -q, --quiet                 Give less output.
  --log-file <path>           Path to a verbose non-appending log, that only logs failures. This log is active by default at /Users/Xavier/.pip/pip.log.
  --log <path>                Path to a verbose appending log. This log is inactive by default.
  --proxy <proxy>             Specify a proxy in the form [user:passwd@]proxy.server:port.
  --timeout <sec>             Set the socket timeout (default 15 seconds).
  --exists-action <action>    Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup.
  --cert <path>               Path to alternate CA bundle.