[Numpy-discussion] help getting started

Zachary Pincus zachary.pincus@yale....
Fri Apr 10 13:23:35 CDT 2009

Hi John,

First, did you build your own Python 2.6 or install from a binary?  
When you type "python" at the command prompt, which python runs? (You  
can find this out by running "which python" from the command line.)

Second, it appears that numpy is *already installed* for a non-apple  
python 2.5 on your computer. (Either you manually built that python,  
or installed it from an installer, and then you built or installed  
numpy for that python?) I can tell this because you have a directory:


which normally gets created during the process of installing numpy for  
Python 2.5. Unless you manually created this directory yourself  
somehow? Anyhow, that directory is *not* the source-code directory  
that you should be running numpy's setup.py from; it is the directory  
that the installation process for numpy copies all of the necessary  
files into!

Anyhow, how did you come to be executing commands from that directory?  
The numpy install instructions definitely don't have a "cd /Library/ 
numpy" step...

So, if you want to use numpy with python 2.5, you should be all set  
already. If you need to use it with 2.6, then you will want to  
download the source code into a directory somewhere -- say in your  
home folder. Then execute "python setup.py install" from *this*  
directory. (Note: if typing "python" does not run python 2.6, but  
instead runs python 2.5, you will want to do "python2.6 setup.py  

Feel free to ask any more questions -- I'm heading out the door, so  
this might be a bit terse.


On Apr 10, 2009, at 1:30 PM, John Seales wrote:

> Intel mac.
> Python 2.6.
> I'm trying to start using numpy and scipy, and am having trouble.
> I'm trying to install numpy following the instructions on http://scipy.org/Installing_SciPy/Mac_OS_X 
>  .
> when I give the python setup.py build command, it doesn't work.  
> Here's my interaction at the terminal:
> john-seales-computer:/Library/Frameworks/Python.framework/Versions/ 
> 2.5/lib/python2.5/site-packages/numpy johnseales$ python setup.py  
> build
> This is the wrong setup.py file to run
> john-seales-computer:/Library/Frameworks/Python.framework/Versions/ 
> 2.5/lib/python2.5/site-packages/numpy
> Anybody have any ideas how I can get up and runnng?
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