nixpkgs/pkgs/development/python-modules/Theano/default.nix
Profpatsch 4a7f99d55d treewide: with stdenv.lib; in meta -> with lib;
Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix
2021-01-11 10:38:22 +01:00

95 lines
3.0 KiB
Nix

{ lib, stdenv
, runCommandCC
, fetchPypi
, buildPythonPackage
, isPyPy
, pythonOlder
, isPy3k
, nose
, numpy
, scipy
, six
, libgpuarray
, cudaSupport ? false, cudatoolkit
, cudnnSupport ? false, cudnn
, nvidia_x11
}:
assert cudnnSupport -> cudaSupport;
assert cudaSupport -> nvidia_x11 != null
&& cudatoolkit != null
&& cudnn != null;
let
wrapped = command: buildTop: buildInputs:
runCommandCC "${command}-wrapped" { inherit buildInputs; } ''
type -P '${command}' || { echo '${command}: not found'; exit 1; }
cat > "$out" <<EOF
#!$(type -P bash)
$(declare -xp | sed -e '/^[^=]\+="\('"''${NIX_STORE//\//\\/}"'\|[^\/]\)/!d')
declare -x NIX_BUILD_TOP="${buildTop}"
$(type -P '${command}') "\$@"
EOF
chmod +x "$out"
'';
# Theano spews warnings and disabled flags if the compiler isn't named g++
cxx_compiler_name =
if stdenv.cc.isGNU then "g++" else
if stdenv.cc.isClang then "clang++" else
throw "Unknown C++ compiler";
cxx_compiler = wrapped cxx_compiler_name "\\$HOME/.theano"
( stdenv.lib.optional cudaSupport libgpuarray_
++ stdenv.lib.optional cudnnSupport cudnn );
libgpuarray_ = libgpuarray.override { inherit cudaSupport cudatoolkit; };
in buildPythonPackage rec {
pname = "Theano";
version = "1.0.5";
disabled = isPyPy || pythonOlder "2.6" || (isPy3k && pythonOlder "3.3");
src = fetchPypi {
inherit pname version;
sha256 = "129f43ww2a6badfdr6b88kzjzz2b0wk0dwkvwb55z6dsagfkk53f";
};
postPatch = ''
substituteInPlace theano/configdefaults.py \
--replace 'StrParam(param, is_valid=warn_cxx)' 'StrParam('\'''${cxx_compiler}'\''', is_valid=warn_cxx)' \
--replace 'rc == 0 and config.cxx != ""' 'config.cxx != ""'
'' + stdenv.lib.optionalString cudaSupport ''
substituteInPlace theano/configdefaults.py \
--replace 'StrParam(get_cuda_root)' 'StrParam('\'''${cudatoolkit}'\''')'
'' + stdenv.lib.optionalString cudnnSupport ''
substituteInPlace theano/configdefaults.py \
--replace 'StrParam(default_dnn_base_path)' 'StrParam('\'''${cudnn}'\''')'
'';
# needs to be postFixup so it runs before pythonImportsCheck even when
# doCheck = false (meaning preCheck would be disabled)
postFixup = ''
mkdir -p check-phase
export HOME=$(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
checkInputs = [ nose ];
propagatedBuildInputs = [ numpy numpy.blas scipy six libgpuarray_ ];
pythonImportsCheck = [ "theano" ];
meta = with lib; {
homepage = "http://deeplearning.net/software/theano/";
description = "A Python library for large-scale array computation";
license = licenses.bsd3;
maintainers = with maintainers; [ maintainers.bcdarwin ];
};
}