[Numpy-discussion] need advice on installing NumPy onto a Windows 7 with Python2.7 (32-bit)

William McLendon wcmclen at gmail.com
Fri Jan 27 08:26:33 EST 2012

Yup, it's 32-bit python:
Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)]
on win32
Type "copyright", "credits" or "license()" for more information.

I've only got one python instance installed here :D

Here's where I got the numpy installer,
http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/, as far as I can
tell this should be the right place.

Python has been installed on this system for a while and it's been rebooted
numerous times, I can't imagine that it wouldn't be there.  Matplotlib's
installer had no trouble finding Python.


On Fri, Jan 27, 2012 at 4:55 AM, Olivier Delalleau <shish at keba.be> wrote:

> It seems weird that it wouldn't work, as this is a pretty standard setup.
> Here's a few ideas of things to check:
> - Double-check it's really 32 bit Python (checking sys.maxint)
> - Is there another Python installation that may cause some conflicts?
> - Did you download the numpy superpack from the official website?
> - Reboot
> Unlikely to be helpful, but I can't think of something else right now :/
> -=- Olivier
> 2012/1/27 William McLendon <wcmclen at gmail.com>
>> Hi,
>> I am trying to install NumPy (using
>> numpy-1.6.1-win32-superpack-python2.7) on a Windows 7 machine that has
>> 32-bit Python 2.7 installed on it using the latest installer
>> (python-2.7.2.msi).  Python is installed into the default location,
>> C:\Python27, and as far as I can tell the registry knows about it -- or at
>> least the windows uninstaller in the control panel does...
>> The installation fails because the NumPy installer cannot find the Python
>> installation.  I am then prompted with a screen that should allow me to
>> type in the location of my python installation, but the text-boxes where I
>> should type this do not allow input so I'm kind of stuck.
>> I did look into trying to build from source, but I don't have a C
>> compiler on this system so setup.py died a horrible death.  I'd prefer to
>> avoid having to install Visual C++ Express on this system.
>> Does anyone have any suggestions that might be helpful?
>> Thanks!
>>   -William
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