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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263{ lib, buildPythonPackage, fetchFromGitHub, fetchpatch, flit-scm, pytestCheckHook, pythonAtLeast, pythonOlder, typing-extensions,}:
buildPythonPackage rec { pname = "exceptiongroup"; version = "1.3.1"; pyproject = true;
src = fetchFromGitHub { owner = "agronholm"; repo = "exceptiongroup"; tag = version; hash = "sha256-3WInufN+Pp6vB/Gik6e8V1a34Dr/oiH3wDMB+2lHRMM="; };
patches = [ # CPython fixed https://github.com/python/cpython/issues/141732 in # https://github.com/python/cpython/pull/141736 (backported to Python 3.13+), # but exceptiongroup 1.3.1, including its test suite, still matches the old # repr behavior. # Upstream issue: https://github.com/agronholm/exceptiongroup/issues/154 # Upstream PR: https://github.com/agronholm/exceptiongroup/pull/155 (fetchpatch { name = "match-repr-fix.patch"; url = "https://github.com/agronholm/exceptiongroup/commit/0c6cfbf677f6b50df17311cfdad01e9ff17310aa.patch"; hash = "sha256-EeYu1/JKYRDwdq8+n38RrdogipNzX0ate1trDs1Z3c0="; }) ];
build-system = [ flit-scm ];
dependencies = lib.optionals (pythonOlder "3.13") [ typing-extensions ];
nativeCheckInputs = [ pytestCheckHook ];
doCheck = pythonAtLeast "3.11"; # infinite recursion with pytest
disabledTests = lib.optionals (pythonAtLeast "3.14") [ # RecursionError not raised "test_deep_split" "test_deep_subgroup" ];
pythonImportsCheck = [ "exceptiongroup" ];
meta = { description = "Backport of PEP 654 (exception groups)"; homepage = "https://github.com/agronholm/exceptiongroup"; changelog = "https://github.com/agronholm/exceptiongroup/blob/${version}/CHANGES.rst"; license = lib.licenses.mit; maintainers = with lib.maintainers; [ fab ]; };}