[show][config][plugin] add processing of ModuleNotFoundError with log_warning

tests/test_util_base.py

@@ -0,0 +1,31 @@
+from unittest.mock import patch, MagicMock
+from utilities_common.util_base import UtilHelper
+
+
+@patch("pkgutil.iter_modules")
+@patch("utilities_common.util_base.log.log_error")
+@patch("utilities_common.util_base.log.log_warning")
+def test_load_plugins_exceptions_logs(mock_log_warning, mock_log_error, mock_iter_modules):
+    NON_EXISTENT_MODULE_NAME = "non-existent-module"
+    FAILED_TO_IMPORT_MESSAGE = f"failed to import plugin {NON_EXISTENT_MODULE_NAME}"
+    COMMON_EXCEPTION_MESSAGE = "Common exception"
+
+    mock_iter_modules.return_value = [(None, NON_EXISTENT_MODULE_NAME, False)]
+    plugins_namespace = MagicMock()
+    plugins_namespace.__path__ = "some_path"
+    plugins_namespace.__name__ = "some_name"
+
+    # Assetion for ModuleNotFoundError
+    list(UtilHelper().load_plugins(plugins_namespace))
+    mock_log_warning.assert_called_once_with(
+        f"{FAILED_TO_IMPORT_MESSAGE}: No module named '{NON_EXISTENT_MODULE_NAME}'",
+        also_print_to_console=True
+    )
+
+    # Assertion for Exception
+    with patch("importlib.import_module", side_effect=Exception(COMMON_EXCEPTION_MESSAGE)):
+        list(UtilHelper().load_plugins(plugins_namespace))
+    mock_log_error.assert_called_once_with(
+        f"{FAILED_TO_IMPORT_MESSAGE}: {COMMON_EXCEPTION_MESSAGE}",
+        also_print_to_console=True
+    )

utilities_common/util_base.py

@@ -29,6 +29,12 @@ def iter_namespace(ns_pkg):
             log.log_debug('importing plugin: {}'.format(module_name))
             try:
                 module = importlib.import_module(module_name)
+
+            except ModuleNotFoundError as err:
+                log.log_warning('failed to import plugin {}: {}'.format(module_name, err),
+                                also_print_to_console=True)
+                continue
+
             except Exception as err:
                 log.log_error('failed to import plugin {}: {}'.format(module_name, err),
                               also_print_to_console=True)