Add toggleable error if Python version is incompatible

Signed-off-by: Juan Luis Cano Rodríguez <[email protected]>

kedro/__init__.py

@@ -3,4 +3,26 @@
 configuration and pipeline assembly.
 """
 
+import sys
+import warnings
+
 __version__ = "0.18.11"
+
+
+class KedroPythonVersionWarning(UserWarning):
+    """Custom class for warnings about incompatibilities with Python versions."""
+
+    pass
+
+
+if not sys.warnoptions:
+    warnings.simplefilter("error", KedroPythonVersionWarning)
+
+if sys.version_info >= (3, 11):
+    warnings.warn(
+        """Kedro is not yet fully compatible with this Python version.
+To proceed at your own risk and ignore this warning,
+run Kedro with `python -W "default:Kedro is not yet fully compatible" -m kedro ...`
+or set the PYTHONWARNINGS environment variable accordingly.""",
+        KedroPythonVersionWarning,
+    )