150 lines
3.3 KiB
Nix
150 lines
3.3 KiB
Nix
{
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lib,
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stdenv,
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buildPythonPackage,
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fetchFromGitHub,
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# build-system
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pdm-backend,
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# dependencies
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jsonpatch,
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langsmith,
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packaging,
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pydantic,
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pyyaml,
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tenacity,
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typing-extensions,
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# tests
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blockbuster,
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freezegun,
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grandalf,
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httpx,
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langchain-core,
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langchain-tests,
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numpy,
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pytest-asyncio,
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pytest-mock,
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pytest-xdist,
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pytestCheckHook,
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syrupy,
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# passthru
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gitUpdater,
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}:
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buildPythonPackage rec {
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pname = "langchain-core";
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version = "0.3.72";
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pyproject = true;
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src = fetchFromGitHub {
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owner = "langchain-ai";
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repo = "langchain";
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tag = "langchain-core==${version}";
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hash = "sha256-Q2uGMiODUtwkPdOyuSqp8vqjlLjiXk75QjXp7rr20tc=";
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};
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sourceRoot = "${src.name}/libs/core";
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build-system = [ pdm-backend ];
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pythonRelaxDeps = [
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"packaging"
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"tenacity"
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];
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dependencies = [
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jsonpatch
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langsmith
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packaging
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pydantic
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pyyaml
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tenacity
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typing-extensions
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];
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pythonImportsCheck = [ "langchain_core" ];
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# avoid infinite recursion
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doCheck = false;
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nativeCheckInputs = [
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blockbuster
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freezegun
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grandalf
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httpx
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langchain-tests
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numpy
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pytest-asyncio
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pytest-mock
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pytest-xdist
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pytestCheckHook
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syrupy
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];
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enabledTestPaths = [ "tests/unit_tests" ];
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passthru = {
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tests.pytest = langchain-core.overridePythonAttrs (_: {
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doCheck = true;
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});
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updateScript = gitUpdater {
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rev-prefix = "langchain-core==";
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};
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};
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disabledTests = [
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# flaky, sometimes fail to strip uuid from AIMessageChunk before comparing to test value
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"test_map_stream"
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# Compares with machine-specific timings
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"test_rate_limit"
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# flaky: assert (1726352133.7419367 - 1726352132.2697523) < 1
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"test_benchmark_model"
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# TypeError: exceptions must be derived from Warning, not <class 'NoneType'>
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"test_chat_prompt_template_variable_names"
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"test_create_model_v2"
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# Comparison with magic strings
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"test_prompt_with_chat_model"
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"test_prompt_with_chat_model_async"
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"test_prompt_with_llm"
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"test_prompt_with_llm_parser"
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"test_prompt_with_llm_and_async_lambda"
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"test_prompt_with_chat_model_and_parser"
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"test_combining_sequences"
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# AssertionError: assert [+ received] == [- snapshot]
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"test_chat_input_schema"
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# AssertionError: assert {'$defs': {'D...ype': 'array'} == {'$defs': {'D...ype': 'array'}
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"test_schemas"
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# AssertionError: assert [+ received] == [- snapshot]
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"test_graph_sequence_map"
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"test_representation_of_runnables"
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]
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++ lib.optionals stdenv.hostPlatform.isDarwin [
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# Langchain-core the following tests due to the test comparing execution time with magic values.
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"test_queue_for_streaming_via_sync_call"
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"test_same_event_loop"
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# Comparisons with magic numbers
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"test_rate_limit_ainvoke"
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"test_rate_limit_astream"
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];
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disabledTestPaths = [ "tests/unit_tests/runnables/test_runnable_events_v2.py" ];
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meta = {
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description = "Building applications with LLMs through composability";
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homepage = "https://github.com/langchain-ai/langchain/tree/master/libs/core";
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changelog = "https://github.com/langchain-ai/langchain/releases/tag/${src.tag}";
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license = lib.licenses.mit;
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maintainers = with lib.maintainers; [
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natsukium
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sarahec
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];
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};
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}
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