[build-system] requires = ["hatchling"] build-backend = "hatchling.build" [project] name = "langchain-classic" description = "Building applications with LLMs through composability" license = { text = "MIT" } readme = "README.md" classifiers = [ "Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.10", "Programming Language :: Python :: 3.11", "Programming Language :: Python :: 3.12", "Programming Language :: Python :: 3.13", "Topic :: Scientific/Engineering :: Artificial Intelligence", "Topic :: Software Development :: Libraries :: Python Modules", ] version = "1.0.8" requires-python = ">=3.10.0,<4.0.0" dependencies = [ "langchain-core>=1.4.7,<2.0.0", "langchain-text-splitters>=1.1.2,<2.0.0", "langsmith>=0.1.17,<1.0.0", "pydantic>=2.7.4,<3.0.0", "SQLAlchemy>=1.4.0,<3.0.0", "requests>=2.0.0,<3.0.0", "PyYAML>=5.3.0,<7.0.0", "async-timeout>=4.0.0,<5.0.0; python_version < \"3.11\"", ] [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] Homepage = "https://docs.langchain.com/" Documentation = "https://reference.langchain.com/python/langchain_classic/" Repository = "https://github.com/langchain-ai/langchain" Issues = "https://github.com/langchain-ai/langchain/issues" Changelog = "https://github.com/langchain-ai/langchain/releases?q=tag%3A%22langchain-classic%3D%3D1%22" Twitter = "https://x.com/langchain_oss" Slack = "https://www.langchain.com/join-community" Reddit = "https://www.reddit.com/r/LangChain/" [dependency-groups] test = [ "pytest>=9.0.3,<10.0.0", "pytest-cov>=4.0.0,<8.0.0", "pytest-dotenv>=0.5.2,<1.0.0", "pytest-watcher>=0.2.6,<1.0.0", "pytest-asyncio>=1.3.0,<2.0.0", "pytest-mock>=3.10.0,<4.0.0", "pytest-socket>=0.6.0,<1.0.0", "pytest-xdist<4.0.0,>=3.6.1", "numpy>=1.26.4; python_version<'3.13'", "numpy>=2.1.0; python_version>='3.13'", "freezegun>=1.2.2,<2.0.0", "responses>=0.22.0,<1.0.0", "lark>=1.1.5,<2.0.0", "pandas>=2.0.0,<3.0.0", "syrupy>=5.0.0,<6.0.0", "requests-mock>=1.11.0,<2.0.0", "toml>=0.10.2,<1.0.0", "packaging>=24.2.0,<27.0.0", "langchain-tests>=1.1.9,<2.0.0", "langchain-openai", ] test_integration = [ "vcrpy>=8.0.0,<9.0.0", "wrapt>=1.15.0,<3.0.0", "python-dotenv>=1.0.0,<2.0.0", "cassio>=0.1.0,<1.0.0; python_version < '3.14'", ] lint = [ "ruff>=0.15.0,<0.16.0", ] typing = [ "mypy>=2.1.0,<2.2.0", "mypy-protobuf>=3.0.0,<6.0.0", "types-pyyaml>=6.0.12.2,<7.0.0.0", "types-requests>=2.28.11.5,<3.0.0.0", "types-toml>=0.10.8.1,<1.0.0.0", "types-redis>=4.3.21.6,<5.0.0.0", "types-pytz>=2023.3.0.0,<2027.0.0.0", "types-chardet>=5.0.4.6,<6.0.0.0", "numpy>=1.26.4; python_version < '3.13'", "numpy>=2.1.0; python_version >= '3.13'", "fastapi<1.0.0,>=0.116.1", ] dev = [ "jupyter>=1.0.0,<2.0.0", "playwright>=1.28.0,<2.0.0", "setuptools>=67.6.1,<83.0.0", ] [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.uv] constraint-dependencies = ["urllib3>=2.6.3", "pygments>=2.20.0"] [tool.ruff] exclude = ["tests/integration_tests/examples/non-utf8-encoding.py"] [tool.mypy] plugins = ["pydantic.mypy"] strict = true enable_error_code = "deprecated" warn_unreachable = true ignore_missing_imports = true # TODO: activate for 'strict' checking disallow_any_generics = false warn_return_any = false [tool.ruff.format] docstring-code-format = true [tool.ruff.lint] select = [ "ALL",] ignore = [ "C90", # McCabe complexity "COM812", # Messes with the formatter "FIX002", # Line contains TODO "PERF203", # Rarely useful "PLR09", # Too many something (arg, statements, etc) "RUF012", # Doesn't play well with Pydantic "TC001", # Doesn't play well with Pydantic "TC002", # Doesn't play well with Pydantic "TC003", # Doesn't play well with Pydantic "TD002", # Missing author in TODO "TD003", # Missing issue link in TODO "RUF002", # Em-dash in docstring # TODO rules "ANN401", # No type Any "D100", # pydocstyle: missing docstring in public module "PLC0415", # pylint: import-outside-top-level "TRY301", # tryceratops: raise-within-try ] unfixable = [ "B028", # People should intentionally tune the stacklevel ] flake8-annotations.allow-star-arg-any = true flake8-annotations.mypy-init-return = true flake8-type-checking.runtime-evaluated-base-classes = ["pydantic.BaseModel","langchain_core.load.serializable.Serializable","langchain_core.runnables.base.RunnableSerializable"] pep8-naming.classmethod-decorators = [ "classmethod", "langchain_core.utils.pre_init", "pydantic.field_validator", "pydantic.v1.root_validator",] pyupgrade.keep-runtime-typing = true [tool.ruff.lint.pydocstyle] convention = "google" ignore-var-parameters = true # ignore missing documentation for *args and **kwargs parameters [tool.ruff.lint.flake8-tidy-imports] ban-relative-imports = "all" [tool.ruff.lint.extend-per-file-ignores] "tests/**/*.py" = [ "D1", # Docstrings not mandatory in tests "S101", # Tests need assertions "S311", # Standard pseudo-random generators are not suitable for cryptographic purposes "SLF001", # Private member access in tests "PLR2004", # Magic value comparisons ] "tests/integration_tests/examples/*.py" = [ "INP001", # Not a package "EXE001", # Only examples ] "scripts/*.py" = [ "INP001", # Not a package ] "langchain_classic/chains/constitutional_ai/principles.py" = [ "E501", # Line too long ] "**/retrievers/*time_weighted_retriever.py" = [ "DTZ001", # Use of non timezone-aware datetime "DTZ005", # Use of non timezone-aware datetime "DTZ006", # Use of non timezone-aware datetime ] "**/__init__.py" = [ "D104", # Missing docstring in public package ] [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", ]