How to update Numpy on Mac OS X Snow Leopard?

How can I update Numpy into the newest one? Should I download .dmg file from here:

http://sourceforge.net/projects/numpy/files/

Is this .dmg only for 10.5? I have installed numpy using these instructions:

http://www.scipy.org/Installing_SciPy/Mac_OS_X

My current Numpy is 1.2.1. I'm running on Mac OS X 10.6.1 Snow Leopard. Thanks!

sudo easy_install -U numpy

Installing via setuptools will get the new numpy on the sys.path for non-system utilties (I've been told that some Apple utilities rely on the system-numpy). In general, setuptools will "do the right" thing on OS X.

Use pip install -U numpy instead, as easy_install is deprecated in favor of pip

as suggested elsewhere, macports works fine on multiple architecture and versions of MacOsX + allows updates and more:

$ port search numpy
py-numpy @1.3.0 (python)
    The core utilities for the scientific library scipy for Python

py25-numpy @1.3.0 (python)
    The core utilities for the scientific library scipy for Python

py25-symeig @1.4 (python, science)
    Symeig - Symmetrical eigenvalue routines for NumPy.

py26-numpy @1.3.0 (python)
    The core utilities for the scientific library scipy for Python

py26-scikits-audiolab @0.10.2 (python, science, audio)
    Audiolab is a python toolbox to read/write audio files from numpy arrays

Found 5 ports.
$

in your case, simply issue :

$ sudo port install py26-numpy

alternatively, if you want / need to compile yourself, the instructions in HJBlog are very useful. I tested and could easily compile the 64-bit version of matplotlib.

For some reason, easy_install -U numpy didn't work.