fix(agent): Improve error logging in scan_plugins

- Improve error logging in scan_plugins
- Use importlib in scan_plugins rather than __import__ magic function

autogpts/autogpt/autogpt/plugins/__init__.py

@@ -230,11 +230,12 @@ def scan_plugins(config: Config) -> List[AutoGPTPluginTemplate]:
         qualified_module_name = ".".join(plugin_module_path)
 
         try:
-            __import__(qualified_module_name)
-        except ImportError:
-            logger.error(f"Failed to load {qualified_module_name}")
+            plugin = importlib.import_module(qualified_module_name)
+        except ImportError as e:
+            logger.error(
+                f"Failed to load {qualified_module_name} from {plugin_path}: {e}"
+            )
             continue
-        plugin = sys.modules[qualified_module_name]
 
         if not plugins_config.is_enabled(plugin_module_name):
             logger.warning(
@@ -261,8 +262,8 @@ def scan_plugins(config: Config) -> List[AutoGPTPluginTemplate]:
                 zipped_package = zipimporter(str(plugin))
                 try:
                     zipped_module = zipped_package.load_module(str(module.parent))
-                except ZipImportError:
-                    logger.error(f"Failed to load {str(module.parent)}")
+                except ZipImportError as e:
+                    logger.error(f"Failed to load {module.parent} from {plugin}: {e}")
                     continue
 
                 for key in dir(zipped_module):