tjh.dev
1{
2 lib,
3 buildPythonPackage,
4 aiosqlite,
5 dataclasses-json,
6 fetchFromGitHub,
7 grandalf,
8 httpx,
9 langchain-core,
10 langgraph-sdk,
11 langsmith,
12 poetry-core,
13 pydantic,
14 pytest-asyncio,
15 pytest-mock,
16 pytest-xdist,
17 pytestCheckHook,
18 pythonOlder,
19 syrupy,
20}:
21
22buildPythonPackage rec {
23 pname = "langgraph";
24 version = "0.1.9";
25 pyproject = true;
26
27 disabled = pythonOlder "3.10";
28
29 src = fetchFromGitHub {
30 owner = "langchain-ai";
31 repo = "langgraph";
32 rev = "refs/tags/${version}";
33 hash = "sha256-sBjSfKzcILkHgvo8g/NHC+/yUjQSyZB/8xaSCY3rPDs=";
34 };
35
36 sourceRoot = "${src.name}/libs/langgraph";
37
38 build-system = [ poetry-core ];
39
40 dependencies = [ langchain-core ];
41
42 pythonImportsCheck = [ "langgraph" ];
43
44 nativeCheckInputs = [
45 aiosqlite
46 dataclasses-json
47 grandalf
48 httpx
49 langsmith
50 pydantic
51 pytest-asyncio
52 pytest-mock
53 pytest-xdist
54 pytestCheckHook
55 syrupy
56 ];
57
58 pytestFlagsArray = [ "--snapshot-update" ];
59
60 disabledTests = [
61 "test_doesnt_warn_valid_schema" # test is flaky due to pydantic error on the exception
62 ];
63
64 passthru = {
65 updateScript = langgraph-sdk.updateScript;
66 };
67
68 meta = {
69 description = "Build resilient language agents as graphs";
70 homepage = "https://github.com/langchain-ai/langgraph";
71 changelog = "https://github.com/langchain-ai/langgraph/releases/tag/${version}";
72 license = lib.licenses.mit;
73 maintainers = with lib.maintainers; [ sarahec ];
74 };
75}