ci: add testing with Python 3.12 (langchain-ai#22813)

We need to use a different version of numpy for py3.8 and py3.12 in
pyproject.
And so do projects that use that Python version range and import
langchain.

    - **Twitter handle:** _cbornet

.github/workflows/_compile_integration_test.yml

@@ -24,6 +24,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     name: "poetry run pytest -m compile tests/integration_tests #${{ matrix.python-version }}"
     steps:
       - uses: actions/checkout@v4

.github/workflows/_dependencies.yml

@@ -28,6 +28,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     name: dependency checks ${{ matrix.python-version }}
     steps:
       - uses: actions/checkout@v4

.github/workflows/_lint.yml

@@ -34,7 +34,7 @@ jobs:
         # so linting on fewer versions makes CI faster.
         python-version:
           - "3.8"
-          - "3.11"
+          - "3.12"
     steps:
       - uses: actions/checkout@v4
 

.github/workflows/_test.yml

@@ -28,6 +28,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     name: "make test #${{ matrix.python-version }}"
     steps:
       - uses: actions/checkout@v4

.github/workflows/_test_doc_imports.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.11"
+          - "3.12"
     name: "check doc imports #${{ matrix.python-version }}"
     steps:
       - uses: actions/checkout@v4

.github/workflows/check_diffs.yml

@@ -104,6 +104,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
+          - "3.12"
     runs-on: ubuntu-latest
     defaults:
       run:

libs/community/pyproject.toml

@@ -14,12 +14,17 @@ langchain = "^0.2.0"
 SQLAlchemy = ">=1.4,<3"
 requests = "^2"
 PyYAML = ">=5.3"
-numpy = "^1"
 aiohttp = "^3.8.3"
 tenacity = "^8.1.0"
 dataclasses-json = ">= 0.5.7, < 0.7"
 langsmith = "^0.1.0"
 
+# Support Python 3.8 and 3.12+.
+numpy = [
+    {version = "^1", python = "<3.12"},
+    {version = "^1.26.0", python = ">=3.12"}
+]
+
 [tool.poetry.group.test]
 optional = true
 

libs/community/tests/unit_tests/agents/test_tools.py

@@ -42,7 +42,7 @@ def the_tool(foo: str, bar: str) -> str:
     with pytest.raises(
         ValueError,
         match=f"{agent_cls.__name__} does not support"  # type: ignore
-        f" multi-input tool {the_tool.name}.",
+        f" multi-input tool the_tool.",
     ):
         agent_cls.from_llm_and_tools(MagicMock(), [the_tool])  # type: ignore
 

libs/community/tests/unit_tests/test_dependencies.py

@@ -29,6 +29,7 @@ def test_required_dependencies(poetry_conf: Mapping[str, Any]) -> None:
 
     is_required = {
         package_name: isinstance(requirements, str)
+        or isinstance(requirements, list)
         or not requirements.get("optional", False)
         for package_name, requirements in dependencies.items()
     }