{ lib, torch, buildPythonPackage, fetchFromGitHub, # nativeBuildInputs libpng, ninja, which, # buildInputs libjpeg_turbo, # dependencies numpy, pillow, scipy, # tests pytest, }: let inherit (torch) cudaCapabilities cudaPackages cudaSupport; inherit (cudaPackages) backendStdenv; pname = "torchvision"; version = "0.20.1"; in buildPythonPackage { inherit pname version; src = fetchFromGitHub { owner = "pytorch"; repo = "vision"; rev = "refs/tags/v${version}"; hash = "sha256-BXvi4LoO2LZtNSE8lvFzcN4H2nN2fRg5/s7KRci7rMM="; }; nativeBuildInputs = [ libpng ninja which ] ++ lib.optionals cudaSupport [ cudaPackages.cuda_nvcc ]; buildInputs = [ libjpeg_turbo libpng torch.cxxdev ]; dependencies = [ numpy pillow torch scipy ]; preConfigure = '' export TORCHVISION_INCLUDE="${libjpeg_turbo.dev}/include/" export TORCHVISION_LIBRARY="${libjpeg_turbo}/lib/" '' # NOTE: We essentially override the compilers provided by stdenv because we don't have a hook # for cudaPackages to swap in compilers supported by NVCC. + lib.optionalString cudaSupport '' export CC=${backendStdenv.cc}/bin/cc export CXX=${backendStdenv.cc}/bin/c++ export TORCH_CUDA_ARCH_LIST="${lib.concatStringsSep ";" cudaCapabilities}" export FORCE_CUDA=1 ''; # tries to download many datasets for tests doCheck = false; pythonImportsCheck = [ "torchvision" ]; checkPhase = '' HOME=$TMPDIR py.test test --ignore=test/test_datasets_download.py ''; nativeCheckInputs = [ pytest ]; meta = { description = "PyTorch vision library"; homepage = "https://pytorch.org/"; changelog = "https://github.com/pytorch/vision/releases/tag/v${version}"; license = lib.licenses.bsd3; platforms = with lib.platforms; linux ++ lib.optionals (!cudaSupport) darwin; maintainers = with lib.maintainers; [ ericsagnes ]; }; }