无法让Theano在Ubuntu 14.04上工作

Question

I'm trying to use Theano on ubuntu 14.04, I've followed the guide for an easy install located here http://deeplearning.net/software/theano/install_ubuntu.html#install-ubuntu

Everything says it's installed fine, if I run:

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ libopenblas-dev git

Then I get in return

Reading package lists... Done
Building dependency tree 
Reading state information... Done
g++ is already the newest version.
git is already the newest version.
python-dev is already the newest version.
python-nose is already the newest version.
python-numpy is already the newest version.
libopenblas-dev is already the newest version.
python-pip is already the newest version.
python-scipy is already the newest version.
0 to upgrade, 0 to newly install, 0 to remove and 18 not to upgrade.

And when running

sudo pip install Theano

I get

Requirement already satisfied (use --upgrade to upgrade): Theano in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied (use --upgrade to upgrade): numpy>=1.5.0 in ./.local/lib/python2.7/site-packages (from Theano)
Requirement already satisfied (use --upgrade to upgrade): scipy>=0.7.2 in /usr/lib/python2.7/dist-packages (from Theano)
Cleaning up...

But when I go to run the tests they just don't work.

python -c "import numpy; numpy.test()"

gives me

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/josh/.local/lib/python2.7/site-packages/numpy/__init__.py", line 153, in <module>
    from . import add_newdocs
  File "/home/josh/.local/lib/python2.7/site-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/home/josh/.local/lib/python2.7/site-packages/numpy/lib/__init__.py", line 8, in <module>
    from .type_check import *
  File "/home/josh/.local/lib/python2.7/site-packages/numpy/lib/type_check.py", line 11, in <module>
    import numpy.core.numeric as _nx
  File "/home/josh/.local/lib/python2.7/site-packages/numpy/core/__init__.py", line 6, in <module>
    from . import multiarray
ImportError: /home/josh/.local/lib/python2.7/site-packages/numpy/core/multiarray.so: undefined symbol: PyUnicodeUCS4_AsUnicodeEscapeString

and

python -c "import scipy; scipy.test()"

gives me

Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named scipy

The last test gives very similar results

josh@josh-GA-78LMT-S2P:~$ python -c "import theano; theano.test()"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named theano

I'm a complete linux newbie so I'm completely baffled by what could be the problem.

Answer 1

If you can, I would simply use a "scientific" Python - either Anaconda (my preference) or Enthought Python. In addition to avoiding systemwide installation of packages, it is easy to install things with pip and numpy and scipy come preinstalled. For updating numpy and scipy you can also use the built-in conda package manager - it does an excellent job of handling the nasty work behind installing a new numpy or scipy.