nixpkgs/pkgs/development/python-modules/Cython/default.nix

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{ lib
, stdenv
, buildPythonPackage
, fetchPypi
, fetchpatch
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, python
, glibcLocales
, pkg-config
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, gdb
, numpy
, ncurses
}:
let
excludedTests = []
++ [ "reimport_from_subinterpreter" ]
# cython's testsuite is not working very well with libc++
# We are however optimistic about things outside of testsuite still working
++ lib.optionals (stdenv.cc.isClang or false) [ "cpdef_extern_func" "libcpp_algo" ]
# Some tests in the test suite isn't working on aarch64. Disable them for
# now until upstream finds a workaround.
# Upstream issue here: https://github.com/cython/cython/issues/2308
++ lib.optionals stdenv.isAarch64 [ "numpy_memoryview" ]
++ lib.optionals stdenv.isi686 [ "future_division" "overflow_check_longlong" ]
;
in buildPythonPackage rec {
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pname = "Cython";
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version = "0.29.22";
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src = fetchPypi {
inherit pname version;
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sha256 = "sha256-32uDx6bR2WfqiaKQPkqTE3djSil0WWUuRVFzTEgZVAY=";
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};
nativeBuildInputs = [
pkg-config
];
checkInputs = [
gdb numpy ncurses
];
buildInputs = [ glibcLocales ];
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LC_ALL = "en_US.UTF-8";
patches = [
# https://github.com/cython/cython/issues/2752, needed by sage (https://trac.sagemath.org/ticket/26855) and up to be included in 0.30
(fetchpatch {
name = "non-int-conversion-to-pyhash.patch";
url = "https://github.com/cython/cython/commit/28251032f86c266065e4976080230481b1a1bb29.patch";
sha256 = "19rg7xs8gr90k3ya5c634bs8gww1sxyhdavv07cyd2k71afr83gy";
})
# backport Cython 3.0 trashcan support (https://github.com/cython/cython/pull/2842) to 0.X series.
# it does not affect Python code unless the code explicitly uses the feature.
# trashcan support is needed to avoid stack overflows during object deallocation in sage (https://trac.sagemath.org/ticket/27267)
(fetchpatch {
name = "trashcan.patch";
url = "https://git.sagemath.org/sage.git/plain/build/pkgs/cython/patches/trashcan.patch?id=4569a839f070a1a38d5dbce2a4d19233d25aeed2";
sha256 = "sha256-+pOF1XNTEtNseLpqPzrc1Jfwt5hGx7doUoccIhNneYY=";
})
];
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checkPhase = ''
export HOME="$NIX_BUILD_TOP"
${python.interpreter} runtests.py -j$NIX_BUILD_CORES \
--no-code-style \
${lib.optionalString (builtins.length excludedTests != 0)
''--exclude="(${builtins.concatStringsSep "|" excludedTests})"''}
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'';
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# https://github.com/cython/cython/issues/2785
# Temporary solution
doCheck = false;
# doCheck = !stdenv.isDarwin;
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meta = {
description = "An optimising static compiler for both the Python programming language and the extended Cython programming language";
homepage = "https://cython.org";
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license = lib.licenses.asl20;
maintainers = with lib.maintainers; [ fridh ];
};
}