Update version to 0.2.4 and implement fallback for __getattr__ in iris_ep module

Author: grongierisc

iris_ep.py

@@ -2,4 +2,10 @@
 try:
     from iris_embedded_python import __getattr__
 except ImportError:
-    pass
+    def __getattr__(name):
+        if name in ['cls', 'sql']:
+            logging.warning(f"Class or module '{name}' not found in iris_embedded_python. Returning a mock object. Make sure you local installation is correct.")
+            from unittest.mock import MagicMock
+            return MagicMock()
+        else:
+            return []

pyproject.toml

@@ -3,7 +3,7 @@ requires = ["setuptools", "wheel"]
 
 [project]
 name = "iris-embedded-python-wrapper"
-version = "0.2.3"
+version = "0.2.4"
 description = "Wrapper for embedded python on InterSystems IRIS"
 readme = "README.md"
 authors = [