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{
lib,
buildPythonPackage,
dataclasses-json,
fetchFromGitHub,
langchain-core,
langgraph-sdk,
msgpack,
poetry-core,
pytest-asyncio,
pytest-mock,
pytestCheckHook,
}:
buildPythonPackage rec {
pname = "langgraph-checkpoint";
version = "2.0.16";
pyproject = true;
src = fetchFromGitHub {
owner = "langchain-ai";
repo = "langgraph";
tag = "checkpoint==${version}";
hash = "sha256-HieCzNM+z7d0UGL8QOyjNP5P2IbLf0x0xhaUCWM/c0k=";
};
sourceRoot = "${src.name}/libs/checkpoint";
build-system = [ poetry-core ];
dependencies = [ langchain-core ];
propagatedBuildInputs = [ msgpack ];
pythonRelaxDeps = [ "msgpack" ]; # Can drop after msgpack 1.0.10 lands in nixpkgs
pythonImportsCheck = [ "langgraph.checkpoint" ];
nativeCheckInputs = [
dataclasses-json
pytest-asyncio
pytest-mock
pytestCheckHook
];
disabledTests = [
# AssertionError
"test_serde_jsonplus"
];
passthru = {
updateScript = langgraph-sdk.updateScript;
skipBulkUpdate = true; # Broken, see https://github.com/NixOS/nixpkgs/issues/379898
};
meta = {
changelog = "https://github.com/langchain-ai/langgraph/releases/tag/checkpoint==${version}";
description = "Library with base interfaces for LangGraph checkpoint savers";
homepage = "https://github.com/langchain-ai/langgraph/tree/main/libs/checkpoint";
license = lib.licenses.mit;
maintainers = with lib.maintainers; [
drupol
sarahec
];
};
}
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