sarahec
161 lines
3.5 KiB
Nix
161 lines
3.5 KiB
Nix
{
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lib,
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buildPythonPackage,
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fetchFromGitHub,
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# build-system
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hatchling,
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# dependencies
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langchain-core,
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langgraph,
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pydantic,
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# Optional dependencies
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langchain-anthropic,
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langchain-aws,
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langchain-community,
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langchain-deepseek,
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langchain-fireworks,
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langchain-google-genai,
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langchain-groq,
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langchain-huggingface,
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langchain-mistralai,
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langchain-ollama,
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langchain-openai,
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langchain-perplexity,
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langchain-xai,
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# runtime
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runtimeShell,
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# tests
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langchain-tests,
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pytest-asyncio,
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pytest-mock,
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pytest-socket,
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pytest-xdist,
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pytestCheckHook,
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syrupy,
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toml,
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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";
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version = "1.2.7";
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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==${version}";
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hash = "sha256-vwd8FoXeMLQyFcEViXx/3LqpNieyp4HHevMAv2AxNVY=";
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};
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sourceRoot = "${src.name}/libs/langchain_v1";
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postPatch = ''
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substituteInPlace langchain/agents/middleware/shell_tool.py \
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--replace-fail '"/bin/bash"' '"${runtimeShell}"'
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'';
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build-system = [ hatchling ];
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pythonRelaxDeps = [
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# Each component release requests the exact latest core.
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# That prevents us from updating individual components.
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"langchain-core"
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"numpy"
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"tenacity"
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];
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dependencies = [
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langchain-core
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langgraph
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pydantic
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];
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optional-dependencies = {
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anthropic = [ langchain-anthropic ];
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aws = [ langchain-aws ];
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# azure-ai = [langchain-azure-ai];
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community = [ langchain-community ];
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deepseek = [ langchain-deepseek ];
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fireworks = [ langchain-fireworks ];
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google-genai = [ langchain-google-genai ];
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# google-vertexai = [langchain-google-vertexai];
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groq = [ langchain-groq ];
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huggingface = [ langchain-huggingface ];
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mistralai = [ langchain-mistralai ];
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ollama = [ langchain-ollama ];
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openai = [ langchain-openai ];
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perplexity = [ langchain-perplexity ];
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# together = [langchain-together];
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xai = [ langchain-xai ];
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};
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nativeCheckInputs = [
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langchain-tests
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# langchain-openai -- causes recursion error
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pytest-asyncio
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pytest-mock
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pytest-socket
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pytest-xdist
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pytestCheckHook
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syrupy
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toml
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];
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pytestFlags = [
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"--only-core"
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];
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# Note: Not testing with optional dependencies due to mutual recursion
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enabledTestPaths = [
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# integration_tests require network access, database access and require `OPENAI_API_KEY`, etc.
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"tests/unit_tests"
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];
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# All pass with sandbox=false
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disabledTests = [
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# Depends on shell's truncation style
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"test_truncation_indicator_present"
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# Depends on the sleep shell command
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"test_timeout_returns_error"
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# Can't see the shell session results when sandboxed
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"test_startup_and_shutdown_commands"
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# Timing sensitive tests
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"test_tool_retry_constant_backoff"
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];
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disabledTestPaths = [
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# Their configuration tests don't place nicely with nixpkgs
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"tests/unit_tests/test_pytest_config.py"
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];
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pythonImportsCheck = [ "langchain" ];
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passthru = {
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skipBulkUpdate = true;
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updateScript = gitUpdater {
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rev-prefix = "langchain==";
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};
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};
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__darwinAllowLocalNetworking = true;
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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";
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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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