Merge branch 'master' into improve-runnablelambda-types

Author: cbornet

.devcontainer/devcontainer.json

@@ -26,7 +26,7 @@
   // Use 'forwardPorts' to make a list of ports inside the container available locally.
   // "forwardPorts": [],
   // Run commands after the container is created
-  "postCreateCommand": "uv sync && echo 'LangChain (Python) dev environment ready!'",
+  "postCreateCommand": "cd libs/langchain_v1 && uv sync && echo 'LangChain (Python) dev environment ready!'",
   // Configure tool-specific properties.
   "customizations": {
     "vscode": {
@@ -42,7 +42,7 @@
         "GitHub.copilot-chat"
       ],
       "settings": {
-        "python.defaultInterpreterPath": ".venv/bin/python",
+        "python.defaultInterpreterPath": "libs/langchain_v1/.venv/bin/python",
         "python.formatting.provider": "none",
         "[python]": {
           "editor.formatOnSave": true,

.dockerignore

@@ -0,0 +1,34 @@
+# Git
+.git
+.github
+
+# Python
+__pycache__
+*.pyc
+*.pyo
+.venv
+.mypy_cache
+.pytest_cache
+.ruff_cache
+*.egg-info
+.tox
+
+# IDE
+.idea
+.vscode
+
+# Worktree
+worktree
+
+# Test artifacts
+.coverage
+htmlcov
+coverage.xml
+
+# Build artifacts
+dist
+build
+
+# Misc
+*.log
+.DS_Store

libs/cli/pyproject.toml

@@ -38,14 +38,16 @@ dev = [
     "pytest-watcher>=0.3.4,<1.0.0"
 ]
 lint = [
-    "ruff>=0.13.1,<0.14",
-    "mypy>=1.18.1,<1.19"
+    "ruff>=0.14.10,<0.15.0"
 ]
 test = [
     "langchain-core",
     "langchain-classic"
 ]
-typing = ["langchain-classic"]
+typing = [
+    "mypy>=1.19.1,<1.20",
+    "langchain-classic"
+]
 test_integration = []
 
 [tool.uv.sources]

libs/cli/uv.lock

@@ -32,9 +32,9 @@ Slack = "https://www.langchain.com/join-community"
 Reddit = "https://www.reddit.com/r/LangChain/"
 
 [dependency-groups]
-lint = ["ruff>=0.13.1,<0.14.0"]
+lint = ["ruff>=0.14.10,<0.15.0"]
 typing = [
-    "mypy>=1.18.1,<1.19.0",
+    "mypy>=1.19.1,<1.20.0",
     "types-pyyaml>=6.0.12.2,<7.0.0.0",
     "types-requests>=2.28.11.5,<3.0.0.0",
     "langchain-text-splitters",

libs/core/pyproject.toml

@@ -49,7 +49,7 @@ async def test_async_callbacks_in_sync(benchmark: BenchmarkFixture) -> None:
     infinite_cycle = cycle([AIMessage(content=" ".join(["hello", "goodbye"] * 5))])
     model = GenericFakeChatModel(messages=infinite_cycle)
 
-    @benchmark  # type: ignore[misc]
+    @benchmark  # type: ignore[untyped-decorator]
     def sync_callbacks() -> None:
         for _ in range(5):
             for _ in model.stream("meow", {"callbacks": [MyCustomAsyncHandler()]}):

libs/core/tests/benchmarks/test_async_callbacks.py

@@ -49,6 +49,6 @@
 )
 @pytest.mark.benchmark
 def test_import_time(benchmark: BenchmarkFixture, import_path: str) -> None:
-    @benchmark  # type: ignore[misc]
+    @benchmark  # type: ignore[untyped-decorator]
     def import_in_subprocess() -> None:
         subprocess.run([sys.executable, "-c", import_path], check=True)

libs/core/tests/benchmarks/test_imports.py

@@ -28,7 +28,9 @@ COPY . .
 RUN mkdir -p $UV_CACHE_DIR && chmod 755 $UV_CACHE_DIR
 
 # Install dependencies using uv (let uv handle the venv creation)
+WORKDIR /workspaces/langchain/libs/langchain_v1
 RUN uv sync --dev
+WORKDIR /workspaces/langchain
 
 # Create a non-root user and set up proper permissions
 RUN useradd -m -s /bin/bash -u 1000 vscode && \
@@ -38,4 +40,4 @@ USER vscode
 
 # Set shell for interactive use
 SHELL ["/bin/bash", "-c"]
-CMD ["/bin/bash"]
+CMD ["/bin/bash"]

libs/core/uv.lock

@@ -88,12 +88,12 @@ test_integration = [
     "langchain-text-splitters",
 ]
 lint = [
-    "ruff>=0.13.1,<0.14.0",
+    "ruff>=0.14.10,<0.15.0",
     "cffi<1.17.1; python_version < \"3.10\"",
     "cffi; python_version >= \"3.10\"",
 ]
 typing = [
-    "mypy>=1.18.2,<1.19.0",
+    "mypy>=1.19.1,<1.20.0",
     "mypy-protobuf>=3.0.0,<4.0.0",
     "types-pyyaml>=6.0.12.2,<7.0.0.0",
     "types-requests>=2.28.11.5,<3.0.0.0",