pythonPackages.Theano: move and rename variants

We have two derivations, one that supports Cuda, and one that does not.
The names, TheanoWithCuda and TheanoWithoutCuda, now reflect that.
Furthermore, a boolean passthru.cudaSupport was added.

In the future the two derivations should be merged in one, with a
parameter `cudaSupport`.

pkgs/development/python-modules/Theano/theano-with-cuda/default.nix

@@ -0,0 +1,62 @@
+{ buildPythonPackage
+, fetchFromGitHub
+, numpy
+, six
+, scipy
+, nose
+, nose-parameterized
+, pydot_ng
+, sphinx
+, pygments
+, libgpuarray
+, python
+, pycuda
+, cudatoolkit
+, cudnn
+, stdenv
+}:
+
+buildPythonPackage rec {
+  name = "Theano-cuda-${version}";
+  version = "0.8.2";
+
+  src = fetchFromGitHub {
+    owner = "Theano";
+    repo = "Theano";
+    rev = "46fbfeb628220b5e42bf8277a5955c52d153e874";
+    sha256 = "1sl91gli3jaw5gpjqqab4fiq4x6282spqciaid1s65pjsf3k55sc";
+  };
+
+  doCheck = false;
+
+  patchPhase = ''
+    pushd theano/sandbox/gpuarray
+    sed -i -re '2s/^/from builtins import bytes\n/g' subtensor.py
+    sed -i -re "s/(b'2')/int(bytes(\1))/g" subtensor.py
+    sed -i -re "s/(ctx.bin_id\[\-2\])/int(\1)/g" subtensor.py
+
+    sed -i -re '2s/^/from builtins import bytes\n/g' dnn.py
+    sed -i -re "s/(b'30')/int(bytes(\1))/g" dnn.py
+    sed -i -re "s/(ctx.bin_id\[\-2:\])/int(\1)/g" dnn.py
+    popd
+  '';
+
+  dontStrip = true;
+
+  propagatedBuildInputs = [
+    numpy.blas
+    numpy
+    six
+    scipy
+    nose
+    nose-parameterized
+    pydot_ng
+    sphinx
+    pygments
+    pycuda
+    cudatoolkit
+    libgpuarray
+  ] ++ (stdenv.lib.optional (cudnn != null) [ cudnn ]);
+
+  passthru.cudaSupport = true;
+}

pkgs/development/python-modules/Theano/theano-without-cuda/default.nix

@@ -0,0 +1,44 @@
+{ stdenv
+, fetchurl
+, buildPythonPackage
+, isPyPy
+, pythonOlder
+, isPy3k
+, nose
+, numpy
+, pydot_ng
+, scipy
+, six
+}:
+
+buildPythonPackage rec {
+  name = "Theano-0.8.2";
+
+  disabled = isPyPy || pythonOlder "2.6" || (isPy3k && pythonOlder "3.3");
+
+  src = fetchurl {
+    url = "mirror://pypi/T/Theano/${name}.tar.gz";
+    sha256 = "7463c8f7ed1a787bf881f36d38a38607150186697e7ce7e78bfb94b7c6af8930";
+  };
+
+  #preCheck = ''
+  #  mkdir -p check-phase
+  #  export HOME=$(pwd)/check-phase
+  #'';
+  doCheck = false;
+  # takes far too long, also throws "TypeError: sort() missing 1 required positional argument: 'a'"
+  # when run from the installer, and testing with Python 3.5 hits github.com/Theano/Theano/issues/4276,
+  # the fix for which hasn't been merged yet.
+
+  # keep Nose around since running the tests by hand is possible from Python or bash
+  propagatedBuildInputs = [ stdenv nose numpy numpy.blas pydot_ng scipy six ];
+
+  meta = {
+    homepage = http://deeplearning.net/software/theano/;
+    description = "A Python library for large-scale array computation";
+    license = stdenv.lib.licenses.bsd3;
+    maintainers = [ stdenv.lib.maintainers.bcdarwin ];
+  };
+
+  passthru.cudaSupport = false;
+}