How to install Theano on Anaconda Python 2.7 x64 on Windows?

Question

I wonder how to install Theano on Anaconda Python 2.7 x64 on Windows 7 x64. The Theano website provides some instructions but is not clear as to what is specific to Anaconda

Answer 1

If you need Theano on python 2.7 and you already installed Anaconda, you can type the following in a command prompt:

conda create -n Python_27 python=2.7.16
conda activate Python_27
conda install numpy=1.12 scipy mkl-service libpython
conda install theano 

It appears that the windows python 2.7 numpy packages don't include the _mklinit patch. Either set the MKL_THREADING_LAYER in your env or update to python 3 which does have patched packages. You can type in your env:

python
import os
os.environ["MKL_THREADING_LAYER"] = "GNU"