Как установить MatPlotLib на Mac 10.7 в virtualenv

Вот что я пытаюсь сделать:

(SAASSenv)miki725mac:SAASSenv miki725$ python
Python 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> exit()
(SAASSenv)miki725mac:SAASSenv miki725$ 
(SAASSenv)miki725mac:SAASSenv miki725$ pip install http://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.0.1/matplotlib-1.0.1.tar.gz
Downloading/unpacking http://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.0.1/matplotlib-1.0.1.tar.gz
  Downloading matplotlib-1.0.1.tar.gz (13.3Mb): 13.3Mb downloaded
  Running setup.py egg_info for package from http://downloads.sourceforge.net/project/matplotlib/matplotlib/matplotlib-1.0.1/matplotlib-1.0.1.tar.gz
    basedirlist is: []
    ============================================================================
    BUILDING MATPLOTLIB
                matplotlib: 1.0.1
                    python: 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)
                            [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]
                  platform: darwin

    REQUIRED DEPENDENCIES
                     numpy: 1.6.0
                 freetype2: 13.0.7

    OPTIONAL BACKEND DEPENDENCIES
                    libpng: 1.4.8
    Traceback (most recent call last):
      File "<string>", line 14, in <module>
      File "/var/folders/tk/xpmf2q_10qg45c9g_xzmvy4r0000gn/T/pip-02sOum-build/setup.py", line 162, in <module>
        if check_for_tk() or (options['build_tkagg'] is True):
      File "setupext.py", line 832, in check_for_tk
        (Tkinter.__version__.split()[-2], Tkinter.TkVersion, Tkinter.TclVersion))
    IndexError: list index out of range
    Complete output from command python setup.py egg_info:
    basedirlist is: []

============================================================================

BUILDING MATPLOTLIB

            matplotlib: 1.0.1

                python: 2.7.2 (v2.7.2:8527427914a2, Jun 11 2011, 15:22:34)

                        [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]

              platform: darwin



REQUIRED DEPENDENCIES

                 numpy: 1.6.0

             freetype2: 13.0.7



OPTIONAL BACKEND DEPENDENCIES

                libpng: 1.4.8

Traceback (most recent call last):

  File "<string>", line 14, in <module>

  File "/var/folders/tk/xpmf2q_10qg45c9g_xzmvy4r0000gn/T/pip-02sOum-build/setup.py", line 162, in <module>

    if check_for_tk() or (options['build_tkagg'] is True):

  File "setupext.py", line 832, in check_for_tk

    (Tkinter.__version__.split()[-2], Tkinter.TkVersion, Tkinter.TclVersion))

IndexError: list index out of range

----------------------------------------
Command python setup.py egg_info failed with error code 1
Storing complete log in /Users/miki725/.pip/pip.log

Пожалуйста, помогите мне. Если вам нужна дополнительная информация, сообщите мне. Спасибо.