[build-system]
requires = ["pdm-backend"]
build-backend = "pdm.backend"

[project]
authors = []
license = { text = "MIT" }
requires-python = ">=3.9, <4.0"
dependencies = [
    "langchain-core<1.0.0,>=0.3.66",
    "langchain-text-splitters<1.0.0,>=0.3.8",
    "langgraph>=0.5.4",
    "pydantic>=2.7.4",
]


name = "langchain"
version = "1.0.0dev1"
description = "Building applications with LLMs through composability"
readme = "README.md"

[project.optional-dependencies]
# community = ["langchain-community"]
anthropic = ["langchain-anthropic"]
openai = ["langchain-openai"]
azure-ai = ["langchain-azure-ai"]
# cohere = ["langchain-cohere"]
google-vertexai = ["langchain-google-vertexai"]
google-genai = ["langchain-google-genai"]
fireworks = ["langchain-fireworks"]
ollama = ["langchain-ollama"]
together = ["langchain-together"]
mistralai = ["langchain-mistralai"]
huggingface = ["langchain-huggingface"]
groq = ["langchain-groq"]
aws = ["langchain-aws"]
deepseek = ["langchain-deepseek"]
xai = ["langchain-xai"]
perplexity = ["langchain-perplexity"]

[project.urls]
"Source Code" = "https://github.com/langchain-ai/langchain/tree/master/libs/langchain"
"Release Notes" = "https://github.com/langchain-ai/langchain/releases?q=tag%3A%22langchain%3D%3D0%22&expanded=true"
repository = "https://github.com/langchain-ai/langchain"

[dependency-groups]
test = [
    "pytest<9,>=8",
    "pytest-cov<5.0.0,>=4.0.0",
    "pytest-watcher<1.0.0,>=0.2.6",
    "pytest-asyncio<1.0.0,>=0.23.2",
    "pytest-socket<1.0.0,>=0.6.0",
    "syrupy<5.0.0,>=4.0.2",
    "pytest-xdist<4.0.0,>=3.6.1",
    "blockbuster<1.6,>=1.5.18",
    "langchain-tests",
    "langchain-core",
    "langchain-text-splitters",
    "langchain-openai",
    "toml>=0.10.2",
]
codespell = ["codespell<3.0.0,>=2.2.0"]
lint = [
    "ruff<0.13,>=0.12.2",
    "mypy<1.16,>=1.15",
]
typing = [
    "types-toml>=0.10.8.20240310",
]

test_integration = [
    "vcrpy>=7.0",
    "urllib3<2; python_version < \"3.10\"",
    "wrapt<2.0.0,>=1.15.0",
    "python-dotenv<2.0.0,>=1.0.0",
    "cassio<1.0.0,>=0.1.0",
    "langchainhub<1.0.0,>=0.1.16",
    "langchain-core",
    "langchain-text-splitters",
]

[tool.uv.sources]
langchain-core = { path = "../core", editable = true }
langchain-tests = { path = "../standard-tests", editable = true }
langchain-text-splitters = { path = "../text-splitters", editable = true }
langchain-openai = { path = "../partners/openai", editable = true }

[tool.ruff]
target-version = "py39"
exclude = ["tests/integration_tests/examples/non-utf8-encoding.py"]

[tool.mypy]
strict = "True"
strict_bytes = "True"
ignore_missing_imports = "True"
enable_error_code = "deprecated"
report_deprecated_as_note = "True"

# TODO: activate for 'strict' checking
disallow_untyped_calls = "False"
disallow_any_generics = "False"
disallow_untyped_decorators = "False"
warn_return_any = "False"
strict_equality = "False"

[tool.codespell]
skip = ".git,*.pdf,*.svg,*.pdf,*.yaml,*.ipynb,poetry.lock,*.min.js,*.css,package-lock.json,example_data,_dist,examples,*.trig"
ignore-regex = ".*(Stati Uniti|Tense=Pres).*"
ignore-words-list = "momento,collison,ned,foor,reworkd,parth,whats,aapply,mysogyny,unsecure,damon,crate,aadd,symbl,precesses,accademia,nin"

[tool.ruff.lint]
select = [
  "ALL"
]
ignore = [
  "D100",    # pydocstyle: Missing docstring in public module
  "D104",    # pydocstyle: Missing docstring in public package
  "D105",    # pydocstyle: Missing docstring in magic method
  "COM812",  # Messes with the formatter
  "ISC001",  # Messes with the formatter
  "PERF203", # Rarely useful
  "SLF001",  # Private member access
  "UP007",   # pyupgrade: non-pep604-annotation-union
  "PLC0415", # Imports should be at the top. Not always desirable
  "PLR0913", # Too many arguments in function definition
]
unfixable = ["B028"] # People should intentionally tune the stacklevel

pydocstyle.convention = "google"
pyupgrade.keep-runtime-typing = true
flake8-annotations.allow-star-arg-any = true

[tool.ruff.lint.per-file-ignores]
"tests/*" = [
  "D", # Documentation rules
  "PLC0415", # Imports should be at the top. Not always desirable for tests
]

[tool.ruff.lint.extend-per-file-ignores]
"scripts/check_imports.py" = ["ALL"]

"langchain/globals.py" = [
    "PLW"
]

"langchain/chat_models/base.py" = [
    "ANN",
    "C901",
    "FIX002",
    "N802",
    "PLR0911",
    "PLR0912",
    "PLR0915",
]

"langchain/embeddings/base.py" = [
    "PLR0911",
    "PLR0913",
]

"tests/**/*.py" = [
    "S101",   # Tests need assertions
    "S311",   # Standard pseudo-random generators are not suitable for cryptographic purposes
    "SLF001", # Private member access in tests
    "PLR2004", # Magic values are perfectly fine in unit tests (e.g. 0, 1, 2, etc.)
    "C901", # Too complex
    "ANN401", # Annotated type is not necessary
    "N802", # Function name should be lowercase
    "PLW1641", # Object does not implement __hash__ method
    "ARG002", # Unused argument
    "BLE001", # Do not catch blind exception
    "N801", # class name should use CapWords convention
]

[tool.coverage.run]
omit = ["tests/*"]

[tool.pytest.ini_options]
addopts = "--strict-markers --strict-config --durations=5 --snapshot-warn-unused -vv"
markers = [
    "requires: mark tests as requiring a specific library",
    "scheduled: mark tests to run in scheduled testing",
    "compile: mark placeholder test used to compile integration tests without running them",
]
asyncio_mode = "auto"
filterwarnings = [
    "ignore::langchain_core._api.beta_decorator.LangChainBetaWarning",
    "ignore::langchain_core._api.deprecation.LangChainDeprecationWarning:tests",
    "ignore::langchain_core._api.deprecation.LangChainPendingDeprecationWarning:tests",
]