ubuntu 14.04 install theano

At first, we should set up the python environment.
maybe we can simply use the apt-get method:

sudo apt-get install -y python-dev python-pip python-nose gcc g++ git gfortran

for some district such as china, pypi host may not available, we can use other open source, such as pypi.douban.com/simple

Theano also needs BLAS, LAPACK, ATLAS. just install them

sudo apt-get install -y libopenblas-dev liblapack-dev libatlas-base-dev

then install numpy. During my installation, An error due to numpy 1.10.1+ can cause failure of test of theano.

So we can download earlier edition's (such as 1.9.2) source code of numpy, then install it. As we have installed gfortran. The step can be:

 sudo tar -zxvf numpy-1.9.2.gz.zip

cd numpy-1.9.2

sudo python setup.py build  --fcompiler=gnu95

sudo python setup.py install

After the set-up of numpy. we should test numpy.

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

it shouldn't have any error return.

then install scipy. As I got none error from scipy, so we can just install scipy by pip

sudo pip install scipy

then test it:

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

Also no error is accepted

then install   theano.

sudo pip install theano

also test it:

sudo python -c 'import theano; theano.test()'

this test step is really time-consuming, wait and check it has no error.

then theano is successfully set up.

then install Nivida gpu develop drivers.

if error of blas not found errors, sudo apt-get install gfortran libopenblas-dev liblapack-dev