The multirarray-dll error seems identical to yours

http://www.quora.com/Why-wont-Numpy-and-...

So if its stating 'this is not a valid Win32 application' at a guess I would seem that this is true and your version is not officially 64 bit supported. Either that or you have clicked on the wrong setup, all setup files (such as extensions) may not be 64 bit compatible, or the DLL files noted is at worst, just corrupt and unloadable

try here for info

http://stackoverflow.com/questions/19019...

http://stackoverflow.com/questions/21272...

packages from above links :-

Pre-built WinPython

http://winpython.sourceforge.net/

Anaconda Python

http://continuum.io/downloads

Python Libraries

http://www.lfd.uci.edu/~gohlke/pythonlib...

Make sure all your library extensions are 64bit?

http://www.lfd.uci.edu/~gohlke/pythonlib...

This might be useful for troubleshooting setup files to see if they are 32 or 64 bit

http://www.dependencywalker.com/

Traceback (most recent call last):

  File "", line 1, in

    import numpy

  File "C:\Python26\Lib\site-packages\numpy\__init__.py", line 136, in

    import add_newdocs

  File "C:\Python26\Lib\site-packages\numpy\add_newdocs.py", line 9, in

    from numpy.lib import add_newdoc

  File "C:\Python26\Lib\site-packages\numpy\lib\__init__.py", line 4, in

    from type_check import *

  File "C:\Python26\Lib\site-packages\numpy\lib\type_check.py", line 8, in

    import numpy.core.numeric as _nx

  File in

    import multiarray

ImportError: DLL load failed: %1 is not a valid Win32 application.