How to import NumPy in the Python shell

Question

I have tried importing NumPy in Python, but it did not succeed:

>>> import numpy as np
    x=np.array([[7,8,5],[3,5,7]],np.int32)

   Traceback (mos         


        

Answer 1

On Debian/Ubuntu:

aptitude install python-numpy

On Windows, download the installer:

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

On other systems, download the tar.gz and run the following:

$ tar xfz numpy-n.m.tar.gz
$ cd numpy-n.m
$ python setup.py install

Answer 2

The message is fairly self-explanatory; your working directory should not be the NumPy source directory when you invoke Python; NumPy should be installed and your working directory should be anything but the directory where it lives.