Add support for Python 3.12 (#1873)

* Add support for Python 3.12

* chore: Update Python version to 3.11 and DuckDB dependency to 0.10.2

* chore: fix mistral components lint

* Update SQLAgent and SQLExecutor imports to use langchain_community utilities

* Update langchain import to langchain_community

* Update langchain import to langchain_community

* 📝 (langflow/__main__.py): Import warnings module to suppress warnings during app execution
📝 (langflow/api/v1/schemas.py): Update timestamp field default value to use datetime.now with timezone.utc
📝 (auth/utils.py): Ignore warnings related to datetime.utcnow when decoding JWT tokens and creating refresh tokens
📝 (models/flow/model.py): Update updated_at field default value to use lambda function with timezone.utc
📝 (models/user/model.py): Update create_at and updated_at field default values to use lambda function with timezone.utc

.github/workflows/lint.yml

@@ -22,8 +22,9 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.10"
+          - "3.12"
           - "3.11"
+          - "3.10"
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }} + Poetry ${{ env.POETRY_VERSION }}

.github/workflows/python_test.yml

@@ -23,8 +23,9 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.10"
+          - "3.12"
           - "3.11"
+          - "3.10"
     env:
       OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
     steps:

.github/workflows/typescript_test.yml

@@ -8,7 +8,7 @@ on:
 env:
   POETRY_VERSION: "1.8.2"
   NODE_VERSION: "21"
-  PYTHON_VERSION: "3.10"
+  PYTHON_VERSION: "3.12"
   # Define the directory where Playwright browsers will be installed.
   # Adjust if your project uses a different path.
   PLAYWRIGHT_BROWSERS_PATH: "ms-playwright"