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{
lib,
buildPythonPackage,
fetchFromGitHub,
pythonAtLeast,
# build-system
pdm-backend,
# dependencies
langchain-core,
langchain-community,
# testing
langchain-tests,
pytestCheckHook,
# passthru
gitUpdater,
}:
buildPythonPackage rec {
pname = "langchain-experimental";
version = "0.4.1";
pyproject = true;
src = fetchFromGitHub {
owner = "langchain-ai";
repo = "langchain-experimental";
tag = "libs/experimental/v${version}";
hash = "sha256-3hz63DCoym2V4b6Wzi0eH+B8mvGu7pqRNj3Ltk04UTk=";
};
sourceRoot = "${src.name}/libs/experimental";
patches = [
# Remove it when https://github.com/langchain-ai/langchain-experimental/pull/58 is merged and released
./001-avoid-check-fullpath.patch
];
build-system = [
pdm-backend
];
pythonRelaxDeps = [
# Each component release requests the exact latest core.
# That prevents us from updating individual components.
"langchain-core"
"langchain-community"
];
dependencies = [
langchain-core
langchain-community
];
nativeCheckInputs = [
langchain-tests
pytestCheckHook
];
pytestFlagsArray = [ "tests/unit_tests" ];
pythonImportsCheck = [ "langchain_experimental" ];
disabledTests = lib.optionals (pythonAtLeast "3.14") [
# AttributeError: module 'ast' has no attribute 'Str'
# https://github.com/langchain-ai/langchain-community/issues/492
"test_color_question_1"
"test_color_question_2"
];
passthru.updateScript = gitUpdater {
rev-prefix = "libs/experimental/v";
};
meta = {
changelog = "https://github.com/langchain-ai/langchain-experimental/releases/tag/${src.tag}";
description = "Experimental features for LangChain";
homepage = "https://github.com/langchain-ai/langchain-experimental/tree/main/libs/experimental";
license = lib.licenses.mit;
maintainers = with lib.maintainers; [
mrdev023
sarahec
];
};
}
|
