[Numpy-discussion] Numpy installation problem

[Keith Goodman]

On Sat, Jul 24, 2010 at 12:58 PM, David Cournapeau <cournape at gmail.com> wrote:
> On Sun, Jul 25, 2010 at 4:50 AM, Jonathan Tu <jhtu at princeton.edu> wrote:
>
>> I am unable to find the files lapack_lite.so or _dotblas.so.  I used the locate command to look for them.
>
> If you just installed numpy, locate won't find them as locate uses a
> database which is usually updated once in a while.
>
> Depending on how you installed numpy, you will find lapack_lite.so in
> /usr, $HOME/.local or somewhere else (and also in the build directory
> in the numpy source tree).

Here's one way to find where numpy is installed:

$ python
>>> import numpy
>>> numpy
<module 'numpy' from
'/usr/local/lib/python2.6/site-packages/numpy/__init__.pyc'>

So on my computer numpy is installed in /usr/local/lib/python2.6/site-packages

> _dotblas.so may not be present, but numpy cannot work without a lapack_lite.so.